learnpath.class.php 328 KB

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  1. <?php // $Id: index.php 16620 2008-10-25 20:03:54Z yannoo $
  2. /*
  3. ==============================================================================
  4. Dokeos - elearning and course management software
  5. Copyright (c) 2004-2008 Dokeos SPRL
  6. Copyright (c) 2003 Ghent University (UGent)
  7. For a full list of contributors, see "credits.txt".
  8. The full license can be read in "license.txt".
  9. This program is free software; you can redistribute it and/or
  10. modify it under the terms of the GNU General Public License
  11. as published by the Free Software Foundation; either version 2
  12. of the License, or (at your option) any later version.
  13. See the GNU General Public License for more details.
  14. Contact: Dokeos, rue Notre Dame, 152, B-1140 Evere, Belgium, info@dokeos.com
  15. ==============================================================================
  16. */
  17. /**
  18. * This (abstract?) class defines the parent attributes and methods for the dokeos learnpaths and scorm
  19. * learnpaths. It is used by the scorm class as well as the dokeos_lp class.
  20. * @package dokeos.learnpath
  21. * @author Yannick Warnier <ywarnier@beeznest.org>
  22. * @license GNU/GPL - See Dokeos license directory for details
  23. */
  24. /**
  25. * Defines the learnpath parent class
  26. * @package dokeos.learnpath
  27. */
  28. class learnpath {
  29. var $attempt = 0; //the number for the current ID view
  30. var $cc; //course (code) this learnpath is located in
  31. var $current; //id of the current item the user is viewing
  32. var $current_score; //the score of the current item
  33. var $current_time_start; //the time the user loaded this resource (this does not mean he can see it yet)
  34. var $current_time_stop; //the time the user closed this resource
  35. var $default_status = 'not attempted';
  36. var $encoding = 'ISO-8859-1';
  37. var $error = '';
  38. var $extra_information = ''; //this string can be used by proprietary SCORM contents to store data about the current learnpath
  39. var $force_commit = false; //for SCORM only - if set to true, will send a scorm LMSCommit() request on each LMSSetValue()
  40. var $index; //the index of the active learnpath_item in $ordered_items array
  41. var $items = array();
  42. var $last; //item_id of last item viewed in the learning path
  43. var $last_item_seen = 0; //in case we have already come in this learnpath, reuse the last item seen if authorized
  44. var $license; //which license this course has been given - not used yet on 20060522
  45. var $lp_id; //DB ID for this learnpath
  46. var $lp_view_id; //DB ID for lp_view
  47. var $log_file; //file where to log learnpath API msg
  48. var $maker; //which maker has conceived the content (ENI, Articulate, ...)
  49. var $message = '';
  50. var $mode='embedded'; //holds the video display mode (fullscreen or embedded)
  51. var $name; //learnpath name (they generally have one)
  52. var $ordered_items = array(); //list of the learnpath items in the order they are to be read
  53. var $path = ''; //path inside the scorm directory (if scorm)
  54. var $theme; // the current theme of the learning path
  55. var $preview_image; // the current image of the learning path
  56. // Tells if all the items of the learnpath can be tried again. Defaults to "no" (=1)
  57. var $prevent_reinit = 1;
  58. // Describes the mode of progress bar display
  59. var $progress_bar_mode = '%';
  60. // Percentage progress as saved in the db
  61. var $progress_db = '0';
  62. var $proximity; //wether the content is distant or local or unknown
  63. var $refs_list = array(); //list of items by ref => db_id. Used only for prerequisites match.
  64. //!!!This array (refs_list) is built differently depending on the nature of the LP.
  65. //If SCORM, uses ref, if Dokeos, uses id to keep a unique value
  66. var $type; //type of learnpath. Could be 'dokeos', 'scorm', 'scorm2004', 'aicc', ...
  67. //TODO check if this type variable is useful here (instead of just in the controller script)
  68. var $user_id; //ID of the user that is viewing/using the course
  69. var $update_queue = array();
  70. var $scorm_debug = 0;
  71. var $arrMenu = array(); //array for the menu items
  72. var $debug = 0; //logging level
  73. /**
  74. * Class constructor. Needs a database handler, a course code and a learnpath id from the database.
  75. * Also builds the list of items into $this->items.
  76. * @param string Course code
  77. * @param integer Learnpath ID
  78. * @param integer User ID
  79. * @return boolean True on success, false on error
  80. */
  81. function learnpath($course, $lp_id, $user_id) {
  82. //check params
  83. //check course code
  84. if($this->debug>0){error_log('New LP - In learnpath::learnpath('.$course.','.$lp_id.','.$user_id.')',0);}
  85. if(empty($course)){
  86. $this->error = 'Course code is empty';
  87. return false;
  88. }
  89. else
  90. {
  91. $main_table = Database::get_main_table(TABLE_MAIN_COURSE);
  92. //$course = Database::escape_string($course);
  93. $course = $this->escape_string($course);
  94. $sql = "SELECT * FROM $main_table WHERE code = '$course'";
  95. if($this->debug>2){error_log('New LP - learnpath::learnpath() '.__LINE__.' - Querying course: '.$sql,0);}
  96. //$res = Database::query($sql);
  97. $res = api_sql_query($sql, __FILE__, __LINE__);
  98. if(Database::num_rows($res)>0)
  99. {
  100. $this->cc = $course;
  101. }
  102. else
  103. {
  104. $this->error = 'Course code does not exist in database ('.$sql.')';
  105. return false;
  106. }
  107. }
  108. //check learnpath ID
  109. if(empty($lp_id))
  110. {
  111. $this->error = 'Learnpath ID is empty';
  112. return false;
  113. }
  114. else
  115. {
  116. //TODO make it flexible to use any course_code (still using env course code here)
  117. $lp_table = Database::get_course_table('lp');
  118. //$id = Database::escape_integer($id);
  119. $lp_id = $this->escape_string($lp_id);
  120. $sql = "SELECT * FROM $lp_table WHERE id = '$lp_id'";
  121. if($this->debug>2){error_log('New LP - learnpath::learnpath() '.__LINE__.' - Querying lp: '.$sql,0);}
  122. //$res = Database::query($sql);
  123. $res = api_sql_query($sql, __FILE__, __LINE__);
  124. if(Database::num_rows($res)>0)
  125. {
  126. $this->lp_id = $lp_id;
  127. $row = Database::fetch_array($res);
  128. $this->type = $row['lp_type'];
  129. $this->name = stripslashes($row['name']);
  130. $this->encoding = $row['default_encoding'];
  131. $this->proximity = $row['content_local'];
  132. $this->theme = $row['theme'];
  133. $this->maker = $row['content_maker'];
  134. $this->prevent_reinit = $row['prevent_reinit'];
  135. $this->license = $row['content_license'];
  136. $this->scorm_debug = $row['debug'];
  137. $this->js_lib = $row['js_lib'];
  138. $this->path = $row['path'];
  139. $this->preview_image= $row['preview_image'];
  140. $this->author= $row['author'];
  141. if($this->type == 2){
  142. if($row['force_commit'] == 1){
  143. $this->force_commit = true;
  144. }
  145. }
  146. $this->mode = $row['default_view_mod'];
  147. }
  148. else
  149. {
  150. $this->error = 'Learnpath ID does not exist in database ('.$sql.')';
  151. return false;
  152. }
  153. }
  154. //check user ID
  155. if(empty($user_id)){
  156. $this->error = 'User ID is empty';
  157. return false;
  158. }
  159. else
  160. {
  161. //$main_table = Database::get_main_user_table();
  162. $main_table = Database::get_main_table(TABLE_MAIN_USER);
  163. //$user_id = Database::escape_integer($user_id);
  164. $user_id = $this->escape_string($user_id);
  165. $sql = "SELECT * FROM $main_table WHERE user_id = '$user_id'";
  166. if($this->debug>2){error_log('New LP - learnpath::learnpath() '.__LINE__.' - Querying user: '.$sql,0);}
  167. //$res = Database::query($sql);
  168. $res = api_sql_query($sql, __FILE__, __LINE__);
  169. if(Database::num_rows($res)>0)
  170. {
  171. $this->user_id = $user_id;
  172. }
  173. else
  174. {
  175. $this->error = 'User ID does not exist in database ('.$sql.')';
  176. return false;
  177. }
  178. }
  179. //end of variables checking
  180. //now get the latest attempt from this user on this LP, if available, otherwise create a new one
  181. $lp_table = Database::get_course_table(TABLE_LP_VIEW);
  182. //selecting by view_count descending allows to get the highest view_count first
  183. $sql = "SELECT * FROM $lp_table WHERE lp_id = '$lp_id' AND user_id = '$user_id' ORDER BY view_count DESC";
  184. if($this->debug>2){error_log('New LP - learnpath::learnpath() '.__LINE__.' - querying lp_view: '.$sql,0);}
  185. //$res = Database::query($sql);
  186. $res = api_sql_query($sql, __FILE__, __LINE__);
  187. $view_id = 0; //used later to query lp_item_view
  188. if(Database::num_rows($res)>0)
  189. {
  190. if($this->debug>2){error_log('New LP - learnpath::learnpath() '.__LINE__.' - Found previous view',0);}
  191. $row = Database::fetch_array($res);
  192. $this->attempt = $row['view_count'];
  193. $this->lp_view_id = $row['id'];
  194. $this->last_item_seen = $row['last_item'];
  195. $this->progress_db = $row['progress'];
  196. }
  197. else
  198. {
  199. if($this->debug>2){error_log('New LP - learnpath::learnpath() '.__LINE__.' - NOT Found previous view',0);}
  200. $this->attempt = 1;
  201. $sql_ins = "INSERT INTO $lp_table (lp_id,user_id,view_count) VALUES ($lp_id,$user_id,1)";
  202. $res_ins = api_sql_query($sql_ins, __FILE__, __LINE__);
  203. $this->lp_view_id = Database::get_last_insert_id();
  204. if($this->debug>2){error_log('New LP - learnpath::learnpath() '.__LINE__.' - inserting new lp_view: '.$sql_ins,0);}
  205. }
  206. //initialise items
  207. $lp_item_table = Database::get_course_table(TABLE_LP_ITEM);
  208. $sql = "SELECT * FROM $lp_item_table WHERE lp_id = '".$this->lp_id."' ORDER BY parent_item_id, display_order";
  209. $res = api_sql_query($sql, __FILE__, __LINE__);
  210. while($row = Database::fetch_array($res))
  211. {
  212. $oItem = '';
  213. //$this->ordered_items[] = $row['id'];
  214. switch($this->type){
  215. case 3: //aicc
  216. $oItem = new aiccItem('db',$row['id']);
  217. if(is_object($oItem)){
  218. $my_item_id = $oItem->get_id();
  219. $oItem->set_lp_view($this->lp_view_id);
  220. $oItem->set_prevent_reinit($this->prevent_reinit);
  221. // Don't use reference here as the next loop will make the pointed object change
  222. $this->items[$my_item_id] = $oItem;
  223. $this->refs_list[$oItem->ref]=$my_item_id;
  224. if($this->debug>2){error_log('New LP - learnpath::learnpath() - aicc object with id '.$my_item_id.' set in items[]',0);}
  225. }
  226. break;
  227. case 2:
  228. require_once('scorm.class.php');
  229. require_once('scormItem.class.php');
  230. $oItem = new scormItem('db',$row['id']);
  231. if(is_object($oItem)){
  232. $my_item_id = $oItem->get_id();
  233. $oItem->set_lp_view($this->lp_view_id);
  234. $oItem->set_prevent_reinit($this->prevent_reinit);
  235. // Don't use reference here as the next loop will make the pointed object change
  236. $this->items[$my_item_id] = $oItem;
  237. $this->refs_list[$oItem->ref]=$my_item_id;
  238. if($this->debug>2){error_log('New LP - object with id '.$my_item_id.' set in items[]',0);}
  239. }
  240. break;
  241. case 1:
  242. default:
  243. require_once('learnpathItem.class.php');
  244. $oItem = new learnpathItem($row['id'],$user_id);
  245. if(is_object($oItem)){
  246. $my_item_id = $oItem->get_id();
  247. //$oItem->set_lp_view($this->lp_view_id); moved down to when we are sure the item_view exists
  248. $oItem->set_prevent_reinit($this->prevent_reinit);
  249. // Don't use reference here as the next loop will make the pointed object change
  250. $this->items[$my_item_id] = $oItem;
  251. $this->refs_list[$my_item_id]=$my_item_id;
  252. if($this->debug>2){error_log('New LP - learnpath::learnpath() '.__LINE__.' - object with id '.$my_item_id.' set in items[]',0);}
  253. }
  254. break;
  255. }
  256. //items is a list of pointers to all items, classified by DB ID, not SCO id
  257. if($row['parent_item_id'] == 0 OR empty($this->items[$row['parent_item_id']])){
  258. $this->items[$row['id']]->set_level(0);
  259. }else{
  260. $level = $this->items[$row['parent_item_id']]->get_level()+1;
  261. $this->items[$row['id']]->set_level($level);
  262. if(is_object($this->items[$row['parent_item_id']])){
  263. //items is a list of pointers from item DB ids to item objects
  264. $this->items[$row['parent_item_id']]->add_child($row['id']);
  265. }else{
  266. if($this->debug>2){error_log('New LP - learnpath::learnpath() '.__LINE__.' - The parent item ('.$row['parent_item_id'].') of item '.$row['id'].' could not be found',0);}
  267. }
  268. }
  269. //get last viewing vars
  270. $lp_item_view_table = Database::get_course_table(TABLE_LP_ITEM_VIEW);
  271. //this query should only return one or zero result
  272. $sql = "SELECT * " .
  273. "FROM $lp_item_view_table " .
  274. "WHERE lp_view_id = ".$this->lp_view_id." " .
  275. "AND lp_item_id = ".$row['id']." ORDER BY view_count DESC ";
  276. if($this->debug>2){error_log('New LP - learnpath::learnpath() - Selecting item_views: '.$sql,0);}
  277. //get the item status
  278. $res2 = api_sql_query($sql, __FILE__, __LINE__);
  279. if(Database::num_rows($res2)>0)
  280. {
  281. //if this learnpath has already been used by this user, get his last attempt count and
  282. //the last item seen back into this object
  283. //$max = 0;
  284. $row2 = Database::fetch_array($res2);
  285. if($this->debug>2){error_log('New LP - learnpath::learnpath() - Got item_view: '.print_r($row2,true),0);}
  286. $this->items[$row['id']]->set_status($row2['status']);
  287. if(empty($row2['status'])){
  288. $this->items[$row['id']]->set_status($this->default_status);
  289. }
  290. //$this->attempt = $row['view_count'];
  291. //$this->last_item = $row['id'];
  292. }
  293. else //no item found in lp_item_view for this view
  294. {
  295. //first attempt from this user. Set attempt to 1 and last_item to 0 (first item available)
  296. //TODO if the learnpath has not got attempts activated, always use attempt '1'
  297. //$this->attempt = 1;
  298. //$this->last_item = 0;
  299. $this->items[$row['id']]->set_status($this->default_status);
  300. //Add that row to the lp_item_view table so that we have something to show in the stats page
  301. $sql_ins = "INSERT INTO $lp_item_view_table " .
  302. "(lp_item_id, lp_view_id, view_count, status) VALUES " .
  303. "(".$row['id'].",".$this->lp_view_id.",1,'not attempted')";
  304. if($this->debug>2){error_log('New LP - learnpath::learnpath() '.__LINE__.' - Inserting blank item_view : '.$sql_ins,0);}
  305. $res_ins = api_sql_query($sql_ins, __FILE__, __LINE__);
  306. }
  307. //setting the view in the item object
  308. $this->items[$row['id']]->set_lp_view($this->lp_view_id);
  309. }
  310. $this->ordered_items = $this->get_flat_ordered_items_list($this->get_id(),0);
  311. $this->max_ordered_items = 0;
  312. foreach($this->ordered_items as $index=>$dummy){
  313. if($index > $this->max_ordered_items AND !empty($dummy)){
  314. $this->max_ordered_items = $index;
  315. }
  316. }
  317. //TODO define the current item better
  318. $this->first();
  319. if($this->debug>2){error_log('New LP - learnpath::learnpath() '.__LINE__.' - End of learnpath constructor for learnpath '.$this->get_id(),0);}
  320. }
  321. /**
  322. * Function rewritten based on old_add_item() from Yannick Warnier. Due the fact that users can decide where the item should come, I had to overlook this function and
  323. * I found it better to rewrite it. Old function is still available. Added also the possibility to add a description.
  324. *
  325. * @param int $parent
  326. * @param int $previous
  327. * @param string $type
  328. * @param int $id
  329. * @param string $title
  330. * @param string $description
  331. * @return int
  332. */
  333. function add_item($parent, $previous, $type = 'dokeos_chapter', $id, $title, $description, $prerequisites=0)
  334. {
  335. global $charset;
  336. if($this->debug>0){error_log('New LP - In learnpath::add_item('.$parent.','.$previous.','.$type.','.$id.','.$title.')',0);}
  337. $tbl_lp_item = Database::get_course_table('lp_item');
  338. $parent = intval($parent);
  339. $previous = intval($previous);
  340. $type = $this->escape_string($type);
  341. $id = intval($id);
  342. $title = $this->escape_string(mb_convert_encoding($title,$this->encoding,$charset));
  343. $description = $this->escape_string(mb_convert_encoding($description,$this->encoding,$charset));
  344. $sql_count = "
  345. SELECT COUNT(id) AS num
  346. FROM " . $tbl_lp_item . "
  347. WHERE
  348. lp_id = " . $this->get_id() . " AND
  349. parent_item_id = " . $parent;
  350. $res_count = api_sql_query($sql_count, __FILE__, __LINE__);
  351. $row = Database::fetch_array($res_count);
  352. $num = $row['num'];
  353. if($num > 0)
  354. {
  355. if($previous == 0)
  356. {
  357. $sql = "
  358. SELECT
  359. id,
  360. next_item_id,
  361. display_order
  362. FROM " . $tbl_lp_item . "
  363. WHERE
  364. lp_id = " . $this->get_id() . " AND
  365. parent_item_id = " . $parent . " AND
  366. previous_item_id = 0 OR previous_item_id=".$parent;
  367. $result = api_sql_query($sql, __FILE__, __LINE__);
  368. $row = Database::fetch_array($result);
  369. $tmp_previous = 0;
  370. $next = $row['id'];
  371. $display_order = 0;
  372. }
  373. else
  374. {
  375. $previous = (int) $previous;
  376. $sql = "
  377. SELECT
  378. id,
  379. previous_item_id,
  380. next_item_id,
  381. display_order
  382. FROM " . $tbl_lp_item . "
  383. WHERE
  384. lp_id = " . $this->get_id() . " AND
  385. id = " . $previous;
  386. $result = api_sql_query($sql, __FILE__, __LINE__);
  387. $row = Database::fetch_array($result);
  388. $tmp_previous = $row['id'];
  389. $next = $row['next_item_id'];
  390. $display_order = $row['display_order'];
  391. }
  392. }
  393. else
  394. {
  395. $tmp_previous = 0;
  396. $next = 0;
  397. $display_order = 0;
  398. }
  399. $new_item_id = -1;
  400. $id = $this->escape_string($id);
  401. if($type == 'quiz')
  402. {
  403. $sql = 'SELECT SUM(ponderation)
  404. FROM '.Database :: get_course_table(TABLE_QUIZ_QUESTION).' as quiz_question
  405. INNER JOIN '.Database :: get_course_table(TABLE_QUIZ_TEST_QUESTION).' as quiz_rel_question
  406. ON quiz_question.id = quiz_rel_question.question_id
  407. AND quiz_rel_question.exercice_id = '.$id;
  408. $rsQuiz = api_sql_query($sql, __FILE__, __LINE__);
  409. $max_score = Database::result($rsQuiz, 0, 0);
  410. }
  411. else
  412. {
  413. $max_score = 100;
  414. }
  415. if($prerequisites!=0)
  416. {
  417. $sql_ins = "
  418. INSERT INTO " . $tbl_lp_item . " (
  419. lp_id,
  420. item_type,
  421. ref,
  422. title,
  423. description,
  424. path,
  425. max_score,
  426. parent_item_id,
  427. previous_item_id,
  428. next_item_id,
  429. display_order,
  430. prerequisite
  431. ) VALUES (
  432. " . $this->get_id() . ",
  433. '" . $type . "',
  434. '',
  435. '" . $title . "',
  436. '" . $description . "',
  437. '" . $id . "',
  438. '" . $max_score. "',
  439. " . $parent . ",
  440. " . $previous . ",
  441. " . $next . ",
  442. " . ($display_order + 1) . ",
  443. " . $prerequisites . "
  444. )";
  445. }
  446. else
  447. {
  448. //insert new item
  449. $sql_ins = "
  450. INSERT INTO " . $tbl_lp_item . " (
  451. lp_id,
  452. item_type,
  453. ref,
  454. title,
  455. description,
  456. path,
  457. max_score,
  458. parent_item_id,
  459. previous_item_id,
  460. next_item_id,
  461. display_order
  462. ) VALUES (
  463. " . $this->get_id() . ",
  464. '" . $type . "',
  465. '',
  466. '" . $title . "',
  467. '" . $description . "',
  468. '" . $id . "',
  469. '" . $max_score. "',
  470. " . $parent . ",
  471. " . $previous . ",
  472. " . $next . ",
  473. " . ($display_order + 1) . "
  474. )";
  475. }
  476. if($this->debug>2){error_log('New LP - Inserting dokeos_chapter: '.$sql_ins,0);}
  477. $res_ins = api_sql_query($sql_ins, __FILE__, __LINE__);
  478. if($res_ins > 0)
  479. {
  480. $new_item_id = Database::get_last_insert_id($res_ins);
  481. //update the item that should come after the new item
  482. $sql_update_next = "
  483. UPDATE " . $tbl_lp_item . "
  484. SET previous_item_id = " . $new_item_id . "
  485. WHERE id = " . $next;
  486. $res_update_next = api_sql_query($sql_update_next, __FILE__, __LINE__);
  487. //update the item that should be before the new item
  488. $sql_update_previous = "
  489. UPDATE " . $tbl_lp_item . "
  490. SET next_item_id = " . $new_item_id . "
  491. WHERE id = " . $tmp_previous;
  492. $res_update_previous = api_sql_query($sql_update_previous, __FILE__, __LINE__);
  493. //update all the items after the new item
  494. $sql_update_order = "
  495. UPDATE " . $tbl_lp_item . "
  496. SET display_order = display_order + 1
  497. WHERE
  498. lp_id = " . $this->get_id() . " AND
  499. id <> " . $new_item_id . " AND
  500. parent_item_id = " . $parent . " AND
  501. display_order > " . $display_order;
  502. $res_update_previous = api_sql_query($sql_update_order, __FILE__, __LINE__);
  503. //update the item that should come after the new item
  504. $sql_update_ref = "
  505. UPDATE " . $tbl_lp_item . "
  506. SET ref = " . $new_item_id . "
  507. WHERE id = " . $new_item_id;
  508. api_sql_query($sql_update_ref, __FILE__, __LINE__);
  509. }
  510. // upload audio
  511. if (!empty($_FILES['mp3']['name']))
  512. {
  513. // create the audio folder if it does not exist yet
  514. global $_course;
  515. $filepath = api_get_path('SYS_COURSE_PATH').$_course['path'].'/document/';
  516. if(!is_dir($filepath.'audio'))
  517. {
  518. $perm = api_get_setting('permissions_for_new_directories');
  519. $perm = octdec(!empty($perm)?$perm:'0770');
  520. mkdir($filepath.'audio',$perm);
  521. $audio_id=add_document($_course,'/audio','folder',0,'audio');
  522. api_item_property_update($_course, TOOL_DOCUMENT, $audio_id, 'FolderCreated', api_get_user_id());
  523. }
  524. // upload the file in the documents tool
  525. include_once(api_get_path(LIBRARY_PATH) . 'fileUpload.lib.php');
  526. $file_path = handle_uploaded_document($_course, $_FILES['mp3'],api_get_path('SYS_COURSE_PATH').$_course['path'].'/document','/audio',api_get_user_id(),'','','','','',false);
  527. // getting the filename only
  528. $file_components = explode('/',$file_path);
  529. $file = $file_components[count($file_components)-1];
  530. // store the mp3 file in the lp_item table
  531. $sql_insert_audio = "UPDATE $tbl_lp_item SET audio = '".Database::escape_string($file)."' WHERE id = '".Database::escape_string($new_item_id)."'";
  532. api_sql_query($sql_insert_audio, __FILE__, __LINE__);
  533. }
  534. return $new_item_id;
  535. }
  536. /**
  537. * Static admin function allowing addition of a learnpath to a course.
  538. * @param string Course code
  539. * @param string Learnpath name
  540. * @param string Learnpath description string, if provided
  541. * @param string Type of learnpath (default = 'guess', others = 'dokeos', 'aicc',...)
  542. * @param string Type of files origin (default = 'zip', others = 'dir','web_dir',...)
  543. * @param string Zip file containing the learnpath or directory containing the learnpath
  544. * @return integer The new learnpath ID on success, 0 on failure
  545. */
  546. function add_lp($course,$name,$description='',$learnpath='guess',$origin='zip',$zipname='')
  547. {
  548. //if($this->debug>0){error_log('New LP - In learnpath::add_lp()',0);}
  549. //TODO
  550. $tbl_lp = Database::get_course_table('lp');
  551. //check course code exists
  552. //check lp_name doesn't exist, otherwise append something
  553. $i = 0;
  554. $name = learnpath::escape_string(htmlentities($name)); //Kevin Van Den Haute: added htmlentities()
  555. $check_name = "SELECT * FROM $tbl_lp WHERE name = '$name'";
  556. //if($this->debug>2){error_log('New LP - Checking the name for new LP: '.$check_name,0);}
  557. $res_name = api_sql_query($check_name, __FILE__, __LINE__);
  558. while(Database::num_rows($res_name)){
  559. //there is already one such name, update the current one a bit
  560. $i++;
  561. $name = $name.' - '.$i;
  562. $check_name = "SELECT * FROM $tbl_lp WHERE name = '$name'";
  563. //if($this->debug>2){error_log('New LP - Checking the name for new LP: '.$check_name,0);}
  564. $res_name = api_sql_query($check_name, __FILE__, __LINE__);
  565. }
  566. //new name does not exist yet; keep it
  567. //escape description
  568. $description = learnpath::escape_string(htmlentities($description)); //Kevin: added htmlentities()
  569. $type = 1;
  570. switch($learnpath){
  571. case 'guess':
  572. break;
  573. case 'dokeos':
  574. $type = 1;
  575. break;
  576. case 'aicc':
  577. break;
  578. }
  579. switch($origin){
  580. case 'zip':
  581. //check zipname string. If empty, we are currently creating a new Dokeos learnpath
  582. break;
  583. case 'manual':
  584. default:
  585. $get_max = "SELECT MAX(display_order) FROM $tbl_lp";
  586. $res_max = api_sql_query($get_max, __FILE__, __LINE__);
  587. if(Database::num_rows($res_max)<1){
  588. $dsp = 1;
  589. }else{
  590. $row = Database::fetch_array($res_max);
  591. $dsp = $row[0]+1;
  592. }
  593. $sql_insert = "INSERT INTO $tbl_lp " .
  594. "(lp_type,name,description,path,default_view_mod," .
  595. "default_encoding,display_order,content_maker," .
  596. "content_local,js_lib) " .
  597. "VALUES ($type,'$name','$description','','embedded'," .
  598. "'UTF-8','$dsp','Dokeos'," .
  599. "'local','')";
  600. //if($this->debug>2){error_log('New LP - Inserting new lp '.$sql_insert,0);}
  601. $res_insert = api_sql_query($sql_insert, __FILE__, __LINE__);
  602. $id = Database::get_last_insert_id();
  603. if($id>0){
  604. //insert into item_property
  605. api_item_property_update(api_get_course_info(),TOOL_LEARNPATH,$id,'LearnpathAdded',api_get_user_id());
  606. return $id;
  607. }
  608. break;
  609. }
  610. }
  611. /**
  612. * Appends a message to the message attribute
  613. * @param string Message to append.
  614. */
  615. function append_message($string)
  616. {
  617. if($this->debug>0){error_log('New LP - In learnpath::append_message()',0);}
  618. $this->message .= $string;
  619. }
  620. /**
  621. * Autocompletes the parents of an item in case it's been completed or passed
  622. * @param integer Optional ID of the item from which to look for parents
  623. */
  624. function autocomplete_parents($item)
  625. {
  626. if($this->debug>0){error_log('New LP - In learnpath::autocomplete_parents()',0);}
  627. if(empty($item)){
  628. $item = $this->current;
  629. }
  630. $parent_id = $this->items[$item]->get_parent();
  631. if($this->debug>2){error_log('New LP - autocompleting parent of item '.$item.' (item '.$parent_id.')',0);}
  632. if(is_object($this->items[$item]) and !empty($parent_id))
  633. {//if $item points to an object and there is a parent
  634. if($this->debug>2){error_log('New LP - '.$item.' is an item, proceed',0);}
  635. $current_item =& $this->items[$item];
  636. $parent =& $this->items[$parent_id]; //get the parent
  637. //new experiment including failed and browsed in completed status
  638. $current_status = $current_item->get_status();
  639. if($current_item->is_done() || $current_status=='browsed' || $current_status=='failed')
  640. {
  641. //if the current item is completed or passes or succeeded
  642. $completed = true;
  643. if($this->debug>2){error_log('New LP - Status of current item is alright',0);}
  644. foreach($parent->get_children() as $child)
  645. {
  646. //check all his brothers (his parent's children) for completion status
  647. if($child!= $item)
  648. {
  649. if($this->debug>2){error_log('New LP - Looking at brother with ID '.$child.', status is '.$this->items[$child]->get_status(),0);}
  650. //if($this->items[$child]->status_is(array('completed','passed','succeeded')))
  651. //Trying completing parents of failed and browsed items as well
  652. if($this->items[$child]->status_is(array('completed','passed','succeeded','browsed','failed')))
  653. {
  654. //keep completion status to true
  655. }else{
  656. if($this->debug>2){error_log('New LP - Found one incomplete child of '.$parent_id.': '.$child.' is '.$this->items[$child]->get_status(),0);}
  657. $completed = false;
  658. }
  659. }
  660. }
  661. if($completed == true)
  662. { //if all the children were completed
  663. $parent->set_status('completed');
  664. $parent->save(false,$this->prerequisites_match($parent->get_id()));
  665. $this->update_queue[$parent->get_id()] = $parent->get_status();
  666. if($this->debug>2){error_log('New LP - Added parent to update queue '.print_r($this->update_queue,true),0);}
  667. $this->autocomplete_parents($parent->get_id()); //recursive call
  668. }
  669. }else{
  670. //error_log('New LP - status of current item is not enough to get bothered with it',0);
  671. }
  672. }
  673. }
  674. /**
  675. * Autosaves the current results into the database for the whole learnpath
  676. */
  677. function autosave()
  678. {
  679. if($this->debug>0){error_log('New LP - In learnpath::autosave()',0);}
  680. //TODO add aditionnal save operations for the learnpath itself
  681. }
  682. /**
  683. * Clears the message attribute
  684. */
  685. function clear_message()
  686. {
  687. if($this->debug>0){error_log('New LP - In learnpath::clear_message()',0);}
  688. $this->message = '';
  689. }
  690. /**
  691. * Closes the current resource
  692. *
  693. * Stops the timer
  694. * Saves into the database if required
  695. * Clears the current resource data from this object
  696. * @return boolean True on success, false on failure
  697. */
  698. function close()
  699. {
  700. if($this->debug>0){error_log('New LP - In learnpath::close()',0);}
  701. if(empty($this->lp_id))
  702. {
  703. $this->error = 'Trying to close this learnpath but no ID is set';
  704. return false;
  705. }
  706. $this->current_time_stop = time();
  707. if($this->save)
  708. {
  709. $learnpath_view_table = Database::get_course_table(TABLE_LP_VIEW);
  710. /*
  711. $sql = "UPDATE $learnpath_view_table " .
  712. "SET " .
  713. "stop_time = ".$this->current_time_stop.", " .
  714. "score = ".$this->current_score.", ".
  715. "WHERE learnpath_id = '".$this->lp_id."'";
  716. //$res = Database::query($sql);
  717. $res = api_sql_query($res);
  718. if(mysql_affected_rows($res)<1)
  719. {
  720. $this->error = 'Could not update learnpath_view table while closing learnpath';
  721. return false;
  722. }
  723. */
  724. }
  725. $this->ordered_items = array();
  726. $this->index=0;
  727. unset($this->lp_id);
  728. //unset other stuff
  729. return true;
  730. }
  731. /**
  732. * Static admin function allowing removal of a learnpath
  733. * @param string Course code
  734. * @param integer Learnpath ID
  735. * @param string Whether to delete data or keep it (default: 'keep', others: 'remove')
  736. * @return boolean True on success, false on failure (might change that to return number of elements deleted)
  737. */
  738. function delete($course=null,$id=null,$delete='keep')
  739. {
  740. //TODO implement a way of getting this to work when the current object is not set
  741. //In clear: implement this in the item class as well (abstract class) and use the given ID in queries
  742. //if(empty($course)){$course = api_get_course_id();}
  743. //if(empty($id)){$id = $this->get_id();}
  744. //If an ID is specifically given and the current LP is not the same,
  745. //prevent delete
  746. if(!empty($id) && ($id != $this->lp_id)){return false;}
  747. //if($this->debug>0){error_log('New LP - In learnpath::delete()',0);}
  748. foreach($this->items as $id => $dummy)
  749. {
  750. $this->items[$id]->delete();
  751. }
  752. $lp = Database::get_course_table('lp');
  753. $lp_view = Database::get_course_table('lp_view');
  754. $sql_del_view = "DELETE FROM $lp_view WHERE lp_id = ".$this->lp_id;
  755. //if($this->debug>2){error_log('New LP - Deleting views bound to lp '.$this->lp_id.': '.$sql_del_view,0);}
  756. $res_del_view = api_sql_query($sql_del_view, __FILE__, __LINE__);
  757. $this->toggle_publish($this->lp_id,'i');
  758. //if($this->debug>2){error_log('New LP - Deleting lp '.$this->lp_id.' of type '.$this->type,0);}
  759. if($this->type == 2 OR $this->type==3){
  760. //this is a scorm learning path, delete the files as well
  761. $sql = "SELECT path FROM $lp WHERE id = ".$this->lp_id;
  762. $res = api_sql_query($sql, __FILE__, __LINE__);
  763. if(Database::num_rows($res)>0){
  764. $row = Database::fetch_array($res);
  765. $path = $row['path'];
  766. $sql = "SELECT id FROM $lp WHERE path = '$path' AND id != ".$this->lp_id;
  767. $res = api_sql_query($sql, __FILE__, __LINE__);
  768. if(Database::num_rows($res)>0)
  769. { //another learning path uses this directory, so don't delete it
  770. if($this->debug>2){error_log('New LP - In learnpath::delete(), found other LP using path '.$path.', keeping directory',0);}
  771. }else{
  772. //no other LP uses that directory, delete it
  773. $course_rel_dir = api_get_course_path().'/scorm/'; //scorm dir web path starting from /courses
  774. $course_scorm_dir = api_get_path(SYS_COURSE_PATH).$course_rel_dir; //absolute system path for this course
  775. if($delete == 'remove' && is_dir($course_scorm_dir.$path) and !empty($course_scorm_dir)){
  776. if($this->debug>2){error_log('New LP - In learnpath::delete(), found SCORM, deleting directory: '.$course_scorm_dir.$path,0);}
  777. exec('rm -rf '.$course_scorm_dir.$path);
  778. }
  779. }
  780. }
  781. }
  782. $sql_del_lp = "DELETE FROM $lp WHERE id = ".$this->lp_id;
  783. //if($this->debug>2){error_log('New LP - Deleting lp '.$this->lp_id.': '.$sql_del_lp,0);}
  784. $res_del_lp = api_sql_query($sql_del_lp, __FILE__, __LINE__);
  785. $this->update_display_order();//updates the display order of all lps
  786. api_item_property_update(api_get_course_info(),TOOL_LEARNPATH,$this->lp_id,'delete',api_get_user_id());
  787. //TODO: also delete items and item-views
  788. if (api_get_setting('search_enabled') == 'true') {
  789. require_once(api_get_path(LIBRARY_PATH) .'specific_fields_manager.lib.php');
  790. $r = delete_all_values_for_item($this->cc, TOOL_LEARNPATH, $this->lp_id);
  791. }
  792. }
  793. /**
  794. * Removes all the children of one item - dangerous!
  795. * @param integer Element ID of which children have to be removed
  796. * @return integer Total number of children removed
  797. */
  798. function delete_children_items($id){
  799. if($this->debug>0){error_log('New LP - In learnpath::delete_children_items('.$id.')',0);}
  800. $num = 0;
  801. if(empty($id) || $id != strval(intval($id))){return false;}
  802. $lp_item = Database::get_course_table('lp_item');
  803. $sql = "SELECT * FROM $lp_item WHERE parent_item_id = $id";
  804. $res = api_sql_query($sql, __FILE__, __LINE__);
  805. while($row = Database::fetch_array($res)){
  806. $num += $this->delete_children_items($row['id']);
  807. $sql_del = "DELETE FROM $lp_item WHERE id = ".$row['id'];
  808. $res_del = api_sql_query($sql_del, __FILE__, __LINE__);
  809. $num++;
  810. }
  811. return $num;
  812. }
  813. /**
  814. * Removes an item from the current learnpath
  815. * @param integer Elem ID (0 if first)
  816. * @param integer Whether to remove the resource/data from the system or leave it (default: 'keep', others 'remove')
  817. * @return integer Number of elements moved
  818. * @todo implement resource removal
  819. */
  820. function delete_item($id, $remove='keep')
  821. {
  822. if($this->debug>0){error_log('New LP - In learnpath::delete_item()',0);}
  823. //TODO - implement the resource removal
  824. if(empty($id) || $id != strval(intval($id))){return false;}
  825. //first select item to get previous, next, and display order
  826. $lp_item = Database::get_course_table('lp_item');
  827. $sql_sel = "SELECT * FROM $lp_item WHERE id = $id";
  828. $res_sel = api_sql_query($sql_sel,__FILE__,__LINE__);
  829. if(Database::num_rows($res_sel)<1){return false;}
  830. $row = Database::fetch_array($res_sel);
  831. $previous = $row['previous_item_id'];
  832. $next = $row['next_item_id'];
  833. $display = $row['display_order'];
  834. $parent = $row['parent_item_id'];
  835. $lp = $row['lp_id'];
  836. //delete children items
  837. $num = $this->delete_children_items($id);
  838. if($this->debug>2){error_log('New LP - learnpath::delete_item() - deleted '.$num.' children of element '.$id,0);}
  839. //now delete the item
  840. $sql_del = "DELETE FROM $lp_item WHERE id = $id";
  841. if($this->debug>2){error_log('New LP - Deleting item: '.$sql_del,0);}
  842. $res_del = api_sql_query($sql_del,__FILE__,__LINE__);
  843. //now update surrounding items
  844. $sql_upd = "UPDATE $lp_item SET next_item_id = $next WHERE id = $previous";
  845. $res_upd = api_sql_query($sql_upd,__FILE__,__LINE__);
  846. $sql_upd = "UPDATE $lp_item SET previous_item_id = $previous WHERE id = $next";
  847. $res_upd = api_sql_query($sql_upd,__FILE__,__LINE__);
  848. //now update all following items with new display order
  849. $sql_all = "UPDATE $lp_item SET display_order = display_order-1 WHERE lp_id = $lp AND parent_item_id = $parent AND display_order > $display";
  850. $res_all = api_sql_query($sql_all,__FILE__,__LINE__);
  851. // remove from search engine if enabled
  852. if (api_get_setting('search_enabled') == 'true') {
  853. $tbl_se_ref = Database::get_main_table(TABLE_MAIN_SEARCH_ENGINE_REF);
  854. $sql = 'SELECT * FROM %s WHERE course_code=\'%s\' AND tool_id=\'%s\' AND ref_id_high_level=%s AND ref_id_second_level=%d LIMIT 1';
  855. $sql = sprintf($sql, $tbl_se_ref, $this->cc, TOOL_LEARNPATH, $lp, $id);
  856. $res = api_sql_query($sql, __FILE__, __LINE__);
  857. if (Database::num_rows($res) > 0) {
  858. $row2 = Database::fetch_array($res);
  859. require_once(api_get_path(LIBRARY_PATH) .'search/DokeosIndexer.class.php');
  860. $di = new DokeosIndexer();
  861. $di->remove_document((int)$row2['search_did']);
  862. }
  863. $sql = 'DELETE FROM %s WHERE course_code=\'%s\' AND tool_id=\'%s\' AND ref_id_high_level=%s AND ref_id_second_level=%d LIMIT 1';
  864. $sql = sprintf($sql, $tbl_se_ref, $this->cc, TOOL_LEARNPATH, $lp, $id);
  865. api_sql_query($sql, __FILE__, __LINE__);
  866. }
  867. }
  868. /**
  869. * Updates an item's content in place
  870. * @param integer Element ID
  871. * @param integer Parent item ID
  872. * @param integer Previous item ID
  873. * @param string Item title
  874. * @param string Item description
  875. * @param string Prerequisites (optional)
  876. * @param string Indexing terms (optional)
  877. * @param array The array resulting of the $_FILES[mp3] element
  878. * @return boolean True on success, false on error
  879. */
  880. function edit_item($id, $parent, $previous, $title, $description, $prerequisites=0, $audio=NULL) {
  881. if($this->debug > 0){error_log('New LP - In learnpath::edit_item()', 0);}
  882. if(empty($id) or ($id != strval(intval($id))) or empty($title)){ return false; }
  883. $tbl_lp_item = Database::get_course_table('lp_item');
  884. $sql_select = "
  885. SELECT *
  886. FROM " . $tbl_lp_item . "
  887. WHERE id = " . $id;
  888. $res_select = api_sql_query($sql_select, __FILE__, __LINE__);
  889. $row_select = Database::fetch_array($res_select);
  890. $audio_update_sql = '';
  891. if (is_array($audio) && !empty($audio['tmp_name']) && $audio['error']===0) {
  892. //upload file in documents
  893. $pi = pathinfo($audio['name']);
  894. if ($pi['extension'] == 'mp3') {
  895. $c_det = api_get_course_info($this->cc);
  896. $bp = api_get_path(SYS_COURSE_PATH).$c_det['path'].'/document';
  897. $path = handle_uploaded_document($c_det,$audio,$bp,'/audio',api_get_user_id(),0,null,'',0,'rename',false,0);
  898. $path = substr($path,7);
  899. //update reference in lp_item - audio path is the path from inside de document/audio/ dir
  900. $audio_update_sql = ", audio = '".Database::escape_string($path)."' ";
  901. }
  902. }
  903. $same_parent = ($row_select['parent_item_id'] == $parent) ? true : false;
  904. $same_previous = ($row_select['previous_item_id'] == $previous) ? true : false;
  905. if($same_parent && $same_previous)
  906. {
  907. //only update title and description
  908. $sql_update = "
  909. UPDATE " . $tbl_lp_item . "
  910. SET
  911. title = '" . $this->escape_string(htmlentities($title)) . "',
  912. prerequisite = '".$prerequisites."',
  913. description = '" . $this->escape_string(htmlentities($description)) . "'
  914. ". $audio_update_sql . "
  915. WHERE id = " . $id;
  916. $res_update = api_sql_query($sql_update, __FILE__, __LINE__);
  917. }
  918. else
  919. {
  920. $old_parent = $row_select['parent_item_id'];
  921. $old_previous = $row_select['previous_item_id'];
  922. $old_next = $row_select['next_item_id'];
  923. $old_order = $row_select['display_order'];
  924. $old_prerequisite= $row_select['prerequisite'];
  925. /* BEGIN -- virtually remove the current item id */
  926. /* for the next and previous item it is like the current item doesn't exist anymore */
  927. if($old_previous != 0)
  928. {
  929. $sql_update_next = "
  930. UPDATE " . $tbl_lp_item . "
  931. SET next_item_id = " . $old_next . "
  932. WHERE id = " . $old_previous;
  933. $res_update_next = api_sql_query($sql_update_next, __FILE__, __LINE__);
  934. //echo '<p>' . $sql_update_next . '</p>';
  935. }
  936. if($old_next != 0)
  937. {
  938. $sql_update_previous = "
  939. UPDATE " . $tbl_lp_item . "
  940. SET previous_item_id = " . $old_previous . "
  941. WHERE id = " . $old_next;
  942. $res_update_previous = api_sql_query($sql_update_previous, __FILE__, __LINE__);
  943. //echo '<p>' . $sql_update_previous . '</p>';
  944. }
  945. //display_order - 1 for every item with a display_order bigger then the display_order of the current item
  946. $sql_update_order = "
  947. UPDATE " . $tbl_lp_item . "
  948. SET display_order = display_order - 1
  949. WHERE
  950. display_order > " . $old_order . " AND
  951. parent_item_id = " . $old_parent;
  952. $res_update_order = api_sql_query($sql_update_order, __FILE__, __LINE__);
  953. //echo '<p>' . $sql_update_order . '</p>';
  954. /* END -- virtually remove the current item id */
  955. /* BEGIN -- update the current item id to his new location */
  956. if($previous == 0)
  957. {
  958. //select the data of the item that should come after the current item
  959. $sql_select_old = "
  960. SELECT
  961. id,
  962. display_order
  963. FROM " . $tbl_lp_item . "
  964. WHERE
  965. lp_id = " . $this->lp_id . " AND
  966. parent_item_id = " . $parent . " AND
  967. previous_item_id = " . $previous;
  968. $res_select_old = api_sql_query($sql_select_old, __FILE__, __LINE__);
  969. $row_select_old = Database::fetch_array($res_select_old);
  970. //echo '<p>' . $sql_select_old . '</p>';
  971. //if the new parent didn't have children before
  972. if(Database::num_rows($res_select_old) == 0)
  973. {
  974. $new_next = 0;
  975. $new_order = 1;
  976. }
  977. else
  978. {
  979. $new_next = $row_select_old['id'];
  980. $new_order = $row_select_old['display_order'];
  981. }
  982. //echo 'New next_item_id of current item: ' . $new_next . '<br />';
  983. //echo 'New previous_item_id of current item: ' . $previous . '<br />';
  984. //echo 'New display_order of current item: ' . $new_order . '<br />';
  985. }
  986. else
  987. {
  988. //select the data of the item that should come before the current item
  989. $sql_select_old = "
  990. SELECT
  991. next_item_id,
  992. display_order
  993. FROM " . $tbl_lp_item . "
  994. WHERE id = " . $previous;
  995. $res_select_old = api_sql_query($sql_select_old, __FILE__, __LINE__);
  996. $row_select_old = Database::fetch_array($res_select_old);
  997. //echo '<p>' . $sql_select_old . '</p>';
  998. //echo 'New next_item_id of current item: ' . $row_select_old['next_item_id'] . '<br />';
  999. //echo 'New previous_item_id of current item: ' . $previous . '<br />';
  1000. //echo 'New display_order of current item: ' . ($row_select_old['display_order'] + 1) . '<br />';
  1001. $new_next = $row_select_old['next_item_id'];
  1002. $new_order = $row_select_old['display_order'] + 1;
  1003. }
  1004. //update the current item with the new data
  1005. $sql_update = "
  1006. UPDATE " . $tbl_lp_item . "
  1007. SET
  1008. title = '" . $this->escape_string(htmlentities($title)) . "',
  1009. description = '" . $this->escape_string(htmlentities($description)) . "',
  1010. parent_item_id = " . $parent . ",
  1011. previous_item_id = " . $previous . ",
  1012. next_item_id = " . $new_next . ",
  1013. display_order = " . $new_order . "
  1014. ". $audio_update_sql . "
  1015. WHERE id = " . $id;
  1016. $res_update_next = api_sql_query($sql_update, __FILE__, __LINE__);
  1017. //echo '<p>' . $sql_update . '</p>';
  1018. if($previous != 0)
  1019. {
  1020. //update the previous item's next_item_id
  1021. $sql_update_previous = "
  1022. UPDATE " . $tbl_lp_item . "
  1023. SET next_item_id = " . $id . "
  1024. WHERE id = " . $previous;
  1025. $res_update_next = api_sql_query($sql_update_previous, __FILE__, __LINE__);
  1026. //echo '<p>' . $sql_update_previous . '</p>';
  1027. }
  1028. if($new_next != 0)
  1029. {
  1030. //update the next item's previous_item_id
  1031. $sql_update_next = "
  1032. UPDATE " . $tbl_lp_item . "
  1033. SET previous_item_id = " . $id . "
  1034. WHERE id = " . $new_next;
  1035. $res_update_next = api_sql_query($sql_update_next, __FILE__, __LINE__);
  1036. //echo '<p>' . $sql_update_next . '</p>';
  1037. }
  1038. if($old_prerequisite!=$prerequisites){
  1039. $sql_update_next = "
  1040. UPDATE " . $tbl_lp_item . "
  1041. SET prerequisite = " . $prerequisites . "
  1042. WHERE id = " . $id;
  1043. $res_update_next = api_sql_query($sql_update_next, __FILE__, __LINE__);
  1044. }
  1045. //update all the items with the same or a bigger display_order than
  1046. //the current item
  1047. $sql_update_order = "
  1048. UPDATE " . $tbl_lp_item . "
  1049. SET display_order = display_order + 1
  1050. WHERE
  1051. lp_id = " . $this->get_id() . " AND
  1052. id <> " . $id . " AND
  1053. parent_item_id = " . $parent . " AND
  1054. display_order >= " . $new_order;
  1055. $res_update_next = api_sql_query($sql_update_order, __FILE__, __LINE__);
  1056. //echo '<p>' . $sql_update_order . '</p>';
  1057. /* END -- update the current item id to his new location */
  1058. }
  1059. }
  1060. /**
  1061. * Updates an item's prereq in place
  1062. * @param integer Element ID
  1063. * @param string Prerequisite Element ID
  1064. *
  1065. * @param string Prerequisite item type
  1066. *
  1067. * @param string Prerequisite min score
  1068. *
  1069. * @param string Prerequisite max score
  1070. * @return boolean True on success, false on error
  1071. */
  1072. function edit_item_prereq($id, $prerequisite_id, $mastery_score = 0, $max_score = 100)
  1073. {
  1074. if($this->debug>0){error_log('New LP - In learnpath::edit_item_prereq('.$id.','.$prerequisite_id.','.$mastery_score.','.$max_score.')',0);}
  1075. if(empty($id) or ($id != strval(intval($id))) or empty($prerequisite_id)){ return false; }
  1076. $prerequisite_id = $this->escape_string($prerequisite_id);
  1077. $tbl_lp_item = Database::get_course_table('lp_item');
  1078. if(!is_numeric($mastery_score) || $mastery_score < 0)
  1079. $mastery_score = 0;
  1080. if(!is_numeric($max_score) || $max_score < 0)
  1081. $max_score = 100;
  1082. if($mastery_score > $max_score)
  1083. $max_score = $mastery_score;
  1084. if(!is_numeric($prerequisite_id))
  1085. $prerequisite_id = 'NULL';
  1086. $sql_upd = "
  1087. UPDATE " . $tbl_lp_item . "
  1088. SET prerequisite = ".$prerequisite_id." WHERE id = ".$id;
  1089. $res_upd = api_sql_query($sql_upd ,__FILE__, __LINE__);
  1090. if($prerequisite_id!='NULL' && $prerequisite_id!='')
  1091. {
  1092. $sql_upd = " UPDATE ".$tbl_lp_item." SET
  1093. mastery_score = " . $mastery_score .
  1094. //", max_score = " . $max_score . " " . //max score cannot be changed in the form anyway - see display_item_prerequisites_form()
  1095. " WHERE ref = '" . $prerequisite_id."'" ; //will this be enough to ensure unicity?
  1096. $res_upd = api_sql_query($sql_upd ,__FILE__, __LINE__);
  1097. }
  1098. //TODO update the item object (can be ignored for now because refreshed)
  1099. return true;
  1100. }
  1101. /**
  1102. * Escapes a string with the available database escape function
  1103. * @param string String to escape
  1104. * @return string String escaped
  1105. */
  1106. function escape_string($string){
  1107. //if($this->debug>0){error_log('New LP - In learnpath::escape_string('.$string.')',0);}
  1108. return Database::escape_string($string);
  1109. }
  1110. /**
  1111. * Static admin function exporting a learnpath into a zip file
  1112. * @param string Export type (scorm, zip, cd)
  1113. * @param string Course code
  1114. * @param integer Learnpath ID
  1115. * @param string Zip file name
  1116. * @return string Zip file path (or false on error)
  1117. */
  1118. function export_lp($type, $course, $id, $zipname)
  1119. {
  1120. //if($this->debug>0){error_log('New LP - In learnpath::export_lp()',0);}
  1121. //TODO
  1122. if(empty($type) OR empty($course) OR empty($id) OR empty($zipname)){return false;}
  1123. $url = '';
  1124. switch($type){
  1125. case 'scorm':
  1126. break;
  1127. case 'zip':
  1128. break;
  1129. case 'cdrom':
  1130. break;
  1131. }
  1132. return $url;
  1133. }
  1134. /**
  1135. * Gets all the chapters belonging to the same parent as the item/chapter given
  1136. * Can also be called as abstract method
  1137. * @param integer Item ID
  1138. * @return array A list of all the "brother items" (or an empty array on failure)
  1139. */
  1140. function get_brother_chapters($id){
  1141. if($this->debug>0){error_log('New LP - In learnpath::get_brother_chapters()',0);}
  1142. if(empty($id) OR $id != strval(intval($id))){ return array();}
  1143. $lp_item = Database::get_course_table('lp_item');
  1144. $sql_parent = "SELECT * FROM $lp_item WHERE id = $id AND item_type='dokeos_chapter'";
  1145. $res_parent = api_sql_query($sql_parent,__FILE__,__LINE__);
  1146. if(Database::num_rows($res_parent)>0){
  1147. $row_parent = Database::fetch_array($res_parent);
  1148. $parent = $row_parent['parent_item_id'];
  1149. $sql_bros = "SELECT * FROM $lp_item WHERE parent_item_id = $parent AND id = $id AND item_type='dokeos_chapter' ORDER BY display_order";
  1150. $res_bros = api_sql_query($sql_bros,__FILE__,__LINE__);
  1151. $list = array();
  1152. while ($row_bro = Database::fetch_array($res_bros)){
  1153. $list[] = $row_bro;
  1154. }
  1155. return $list;
  1156. }
  1157. return array();
  1158. }
  1159. /**
  1160. * Gets all the items belonging to the same parent as the item given
  1161. * Can also be called as abstract method
  1162. * @param integer Item ID
  1163. * @return array A list of all the "brother items" (or an empty array on failure)
  1164. */
  1165. function get_brother_items($id){
  1166. if($this->debug>0){error_log('New LP - In learnpath::get_brother_items('.$id.')',0);}
  1167. if(empty($id) OR $id != strval(intval($id))){ return array();}
  1168. $lp_item = Database::get_course_table('lp_item');
  1169. $sql_parent = "SELECT * FROM $lp_item WHERE id = $id";
  1170. $res_parent = api_sql_query($sql_parent,__FILE__,__LINE__);
  1171. if(Database::num_rows($res_parent)>0){
  1172. $row_parent = Database::fetch_array($res_parent);
  1173. $parent = $row_parent['parent_item_id'];
  1174. $sql_bros = "SELECT * FROM $lp_item WHERE parent_item_id = $parent ORDER BY display_order";
  1175. $res_bros = api_sql_query($sql_bros,__FILE__,__LINE__);
  1176. $list = array();
  1177. while ($row_bro = Database::fetch_array($res_bros)){
  1178. $list[] = $row_bro;
  1179. }
  1180. return $list;
  1181. }
  1182. return array();
  1183. }
  1184. /**
  1185. * Get the specific prefix index terms of this learning path
  1186. * @return array Array of terms
  1187. */
  1188. function get_common_index_terms_by_prefix($prefix)
  1189. {
  1190. require_once api_get_path(LIBRARY_PATH) . 'specific_fields_manager.lib.php';
  1191. $terms = get_specific_field_values_list_by_prefix($prefix, $this->cc, TOOL_LEARNPATH, $this->lp_id);
  1192. $prefix_terms = array();
  1193. foreach($terms as $term)
  1194. {
  1195. $prefix_terms[] = $term['value'];
  1196. }
  1197. return $prefix_terms;
  1198. }
  1199. /**
  1200. * Gets the number of items currently completed
  1201. * @return integer The number of items currently completed
  1202. */
  1203. function get_complete_items_count()
  1204. {
  1205. if($this->debug>0){error_log('New LP - In learnpath::get_complete_items_count()',0);}
  1206. $i = 0;
  1207. foreach($this->items as $id => $dummy){
  1208. //if($this->items[$id]->status_is(array('completed','passed','succeeded'))){
  1209. //Trying failed and browsed considered "progressed" as well
  1210. if($this->items[$id]->status_is(array('completed','passed','succeeded','browsed','failed'))&&$this->items[$id]->get_type()!='dokeos_chapter'&&$this->items[$id]->get_type()!='dir'){
  1211. $i++;
  1212. }
  1213. }
  1214. return $i;
  1215. }
  1216. /**
  1217. * Gets the current item ID
  1218. * @return integer The current learnpath item id
  1219. */
  1220. function get_current_item_id()
  1221. {
  1222. $current = 0;
  1223. if($this->debug>0){error_log('New LP - In learnpath::get_current_item_id()',0);}
  1224. if(!empty($this->current))
  1225. {
  1226. $current = $this->current;
  1227. }
  1228. if($this->debug>2){error_log('New LP - In learnpath::get_current_item_id() - Returning '.$current,0);}
  1229. return $current;
  1230. }
  1231. /**
  1232. * Gets the total number of items available for viewing in this SCORM
  1233. * @return integer The total number of items
  1234. */
  1235. function get_total_items_count()
  1236. {
  1237. if($this->debug>0){error_log('New LP - In learnpath::get_total_items_count()',0);}
  1238. return count($this->items);
  1239. }
  1240. /**
  1241. * Gets the total number of items available for viewing in this SCORM but without chapters
  1242. * @return integer The total no-chapters number of items
  1243. */
  1244. function get_total_items_count_without_chapters()
  1245. {
  1246. if($this->debug>0){error_log('New LP - In learnpath::get_total_items_count_without_chapters()',0);}
  1247. $total=0;
  1248. foreach($this->items as $temp=>$temp2){
  1249. if(!in_array($temp2->get_type(), array('dokeos_chapter','chapter','dir'))) $total++;
  1250. }
  1251. return $total;
  1252. }
  1253. /**
  1254. * Gets the first element URL.
  1255. * @return string URL to load into the viewer
  1256. */
  1257. function first()
  1258. {
  1259. if($this->debug>0){error_log('New LP - In learnpath::first()',0);}
  1260. //test if the last_item_seen exists and is not a dir
  1261. if ( count($this->ordered_items) == 0 ) {
  1262. $this->index = 0;
  1263. }
  1264. if(!empty($this->last_item_seen)
  1265. && !empty($this->items[$this->last_item_seen])
  1266. && $this->items[$this->last_item_seen]->get_type() != 'dir'
  1267. && $this->items[$this->last_item_seen]->get_type() != 'dokeos_chapter'
  1268. && $this->items[$this->last_item_seen]->is_done() != true
  1269. ){
  1270. if($this->debug>2){error_log('New LP - In learnpath::first() - Last item seen is '.$this->last_item_seen.' of type '.$this->items[$this->last_item_seen]->get_type(),0);}
  1271. $index = -1;
  1272. foreach($this->ordered_items as $myindex => $item_id){
  1273. if($item_id == $this->last_item_seen){
  1274. $index = $myindex;
  1275. break;
  1276. }
  1277. }
  1278. if($index==-1){
  1279. //index hasn't changed, so item not found - panic (this shouldn't happen)
  1280. if($this->debug>2){error_log('New LP - Last item ('.$this->last_item_seen.') was found in items but not in ordered_items, panic!',0);}
  1281. return false;
  1282. }else{
  1283. $this->last = $this->last_item_seen;
  1284. $this->current = $this->last_item_seen;
  1285. $this->index = $index;
  1286. }
  1287. }else{
  1288. if($this->debug>2){error_log('New LP - In learnpath::first() - No last item seen',0);}
  1289. $index = 0;
  1290. //loop through all ordered items and stop at the first item that is
  1291. //not a directory *and* that has not been completed yet
  1292. while (!empty($this->ordered_items[$index])
  1293. AND
  1294. is_a($this->items[$this->ordered_items[$index]],'learnpathItem')
  1295. AND
  1296. (
  1297. $this->items[$this->ordered_items[$index]]->get_type() == 'dir'
  1298. OR $this->items[$this->ordered_items[$index]]->get_type() == 'dokeos_chapter'
  1299. OR $this->items[$this->ordered_items[$index]]->is_done() === true
  1300. )
  1301. AND $index < $this->max_ordered_items)
  1302. {
  1303. $index ++;
  1304. }
  1305. $this->last = $this->current;
  1306. //current is
  1307. $this->current = $this->ordered_items[$index];
  1308. $this->index = $index;
  1309. if($this->debug>2){error_log('New LP - In learnpath::first() - No last item seen. New last = '.$this->last.'('.$this->ordered_items[$index].')',0);}
  1310. }
  1311. if($this->debug>2){error_log('New LP - In learnpath::first() - First item is '.$this->get_current_item_id());}
  1312. }
  1313. /**
  1314. * Gets the information about an item in a format usable as JavaScript to update
  1315. * the JS API by just printing this content into the <head> section of the message frame
  1316. * @param integer Item ID
  1317. * @return string
  1318. */
  1319. function get_js_info($item_id=''){
  1320. if($this->debug>0){error_log('New LP - In learnpath::get_js_info('.$item_id.')',0);}
  1321. $info = '';
  1322. $item_id = $this->escape_string($item_id);
  1323. if(!empty($item_id) && is_object($this->items[$item_id])){
  1324. //if item is defined, return values from DB
  1325. $oItem = $this->items[$item_id];
  1326. $info .= '<script language="javascript">';
  1327. $info .= "top.set_score(".$oItem->get_score().");\n";
  1328. $info .= "top.set_max(".$oItem->get_max().");\n";
  1329. $info .= "top.set_min(".$oItem->get_min().");\n";
  1330. $info .= "top.set_lesson_status('".$oItem->get_status()."');";
  1331. $info .= "top.set_session_time('".$oItem->get_scorm_time('js')."');";
  1332. $info .= "top.set_suspend_data('".$oItem->get_suspend_data()."');";
  1333. $info .= "top.set_saved_lesson_status('".$oItem->get_status()."');";
  1334. $info .= "top.set_flag_synchronized();";
  1335. $info .= '</script>';
  1336. if($this->debug>2){error_log('New LP - in learnpath::get_js_info('.$item_id.') - returning: '.$info,0);}
  1337. return $info;
  1338. }else{
  1339. //if item_id is empty, just update to default SCORM data
  1340. $info .= '<script language="javascript">';
  1341. $info .= "top.set_score(".learnpathItem::get_score().");\n";
  1342. $info .= "top.set_max(".learnpathItem::get_max().");\n";
  1343. $info .= "top.set_min(".learnpathItem::get_min().");\n";
  1344. $info .= "top.set_lesson_status('".learnpathItem::get_status()."');";
  1345. $info .= "top.set_session_time('".learnpathItem::get_scorm_time('js')."');";
  1346. $info .= "top.set_suspend_data('".learnpathItem::get_suspend_data()."');";
  1347. $info .= "top.set_saved_lesson_status('".learnpathItem::get_status()."');";
  1348. $info .= "top.set_flag_synchronized();";
  1349. $info .= '</script>';
  1350. if($this->debug>2){error_log('New LP - in learnpath::get_js_info('.$item_id.') - returning: '.$info,0);}
  1351. return $info;
  1352. }
  1353. }
  1354. /**
  1355. * Gets the js library from the database
  1356. * @return string The name of the javascript library to be used
  1357. */
  1358. function get_js_lib(){
  1359. $lib = '';
  1360. if(!empty($this->js_lib)){
  1361. $lib = $this->js_lib;
  1362. }
  1363. return $lib;
  1364. }
  1365. /**
  1366. * Gets the learnpath database ID
  1367. * @return integer Learnpath ID in the lp table
  1368. */
  1369. function get_id()
  1370. {
  1371. if($this->debug>0){error_log('New LP - In learnpath::get_id()',0);}
  1372. if(!empty($this->lp_id))
  1373. {
  1374. return $this->lp_id;
  1375. }else{
  1376. return 0;
  1377. }
  1378. }
  1379. /**
  1380. * Gets the last element URL.
  1381. * @return string URL to load into the viewer
  1382. */
  1383. function get_last()
  1384. {
  1385. if($this->debug>0){error_log('New LP - In learnpath::get_last()',0);}
  1386. $this->index = count($this->ordered_items)-1;
  1387. return $this->ordered_items[$this->index];
  1388. }
  1389. /**
  1390. * Gets the navigation bar for the learnpath display screen
  1391. * @return string The HTML string to use as a navigation bar
  1392. */
  1393. function get_navigation_bar()
  1394. {
  1395. if($this->debug>0){error_log('New LP - In learnpath::get_navigation_bar()',0);}
  1396. //TODO find a good value for the following variables
  1397. $file = '';
  1398. $openDir = '';
  1399. $edoceo = '';
  1400. $time = 0;
  1401. $navbar = '';
  1402. $RequestUri = '';
  1403. $mycurrentitemid = $this->get_current_item_id();
  1404. if($this->mode == 'fullscreen')
  1405. {
  1406. $navbar = '<table cellpadding="0" cellspacing="0" align="left">'."\n".
  1407. ' <tr> '."\n" .
  1408. ' <td>'."\n" .
  1409. ' <div class="buttons">'."\n" .
  1410. ' <a href="lp_controller.php?action=stats" onclick="window.parent.API.save_asset();return true;" target="content_name_blank" title="stats" id="stats_link"><img border="0" src="../img/lp_stats.gif" title="'.get_lang('ScormMystatus').'"></a>'."\n" .
  1411. ' <a href="" onclick="dokeos_xajax_handler.switch_item('.$mycurrentitemid.',\'previous\');return false;" title="previous"><img border="0" src="../img/lp_leftarrow.gif" title="'.get_lang('ScormPrevious').'"></a>'."\n" .
  1412. ' <a href="" onclick="dokeos_xajax_handler.switch_item('.$mycurrentitemid.',\'next\');return false;" title="next" ><img border="0" src="../img/lp_rightarrow.gif" title="'.get_lang('ScormNext').'"></a>'."\n" .
  1413. //' <a href="lp_controller.php?action=mode&mode=embedded" target="_top" title="embedded mode"><img border="0" src="../img/view_choose.gif" title="'.get_lang('ScormExitFullScreen').'"></a>'."\n" .
  1414. //' <a href="lp_controller.php?action=list" target="_top" title="learnpaths list"><img border="0" src="../img/exit.png" title="Exit"></a>'."\n" .
  1415. ' </div>'."\n" .
  1416. ' </td>'."\n" .
  1417. ' </tr>'."\n" .
  1418. '</table>'."\n" ;
  1419. }else{
  1420. $navbar = '<table cellpadding="0" cellspacing="0" align="left">'."\n".
  1421. ' <tr> '."\n" .
  1422. ' <td>'."\n" .
  1423. ' <div class="buttons">'."\n" .
  1424. ' <a href="lp_controller.php?action=stats" onclick="window.parent.API.save_asset();return true;" target="content_name" title="stats" id="stats_link"><img border="0" src="../img/lp_stats.gif" title="'.get_lang('ScormMystatus').'"></a>'."\n" .
  1425. ' <a href="" onclick="dokeos_xajax_handler.switch_item('.$mycurrentitemid.',\'previous\');return false;" title="previous"><img border="0" src="../img/lp_leftarrow.gif" title="'.get_lang('ScormPrevious').'"></a>'."\n" .
  1426. ' <a href="" onclick="dokeos_xajax_handler.switch_item('.$mycurrentitemid.',\'next\');return false;" title="next" ><img border="0" src="../img/lp_rightarrow.gif" title="'.get_lang('ScormNext').'"></a>'."\n" .
  1427. // ' <a href="lp_controller.php?action=mode&mode=fullscreen" target="_top" title="fullscreen"><img border="0" src="../img/view_fullscreen.gif" width="18" height="18" title="'.get_lang('ScormFullScreen').'"></a>'."\n" .
  1428. ' </div>'."\n" .
  1429. ' </td>'."\n" .
  1430. ' </tr>'."\n" .
  1431. '</table>'."\n" ;
  1432. }
  1433. return $navbar;
  1434. }
  1435. /**
  1436. * Gets the next resource in queue (url).
  1437. * @return string URL to load into the viewer
  1438. */
  1439. function get_next_index()
  1440. {
  1441. if($this->debug>0){error_log('New LP - In learnpath::get_next_index()',0);}
  1442. //TODO
  1443. $index = $this->index;
  1444. $index ++;
  1445. if($this->debug>2){error_log('New LP - Now looking at ordered_items['.($index).'] - type is '.$this->items[$this->ordered_items[$index]]->type,0);}
  1446. while(!empty($this->ordered_items[$index]) AND ($this->items[$this->ordered_items[$index]]->get_type() == 'dir' || $this->items[$this->ordered_items[$index]]->get_type() == 'dokeos_chapter') AND $index < $this->max_ordered_items)
  1447. {
  1448. $index ++;
  1449. if($index == $this->max_ordered_items)
  1450. {
  1451. return $this->index;
  1452. }
  1453. }
  1454. if(empty($this->ordered_items[$index])){
  1455. return $this->index;
  1456. }
  1457. if($this->debug>2){error_log('New LP - index is now '.$index,0);}
  1458. return $index;
  1459. }
  1460. /**
  1461. * Gets item_id for the next element
  1462. * @return integer Next item (DB) ID
  1463. */
  1464. function get_next_item_id()
  1465. {
  1466. if($this->debug>0){error_log('New LP - In learnpath::get_next_item_id()',0);}
  1467. $new_index = $this->get_next_index();
  1468. if(!empty($new_index))
  1469. {
  1470. if(isset($this->ordered_items[$new_index]))
  1471. {
  1472. if($this->debug>2){error_log('New LP - In learnpath::get_next_index() - Returning '.$this->ordered_items[$new_index],0);}
  1473. return $this->ordered_items[$new_index];
  1474. }
  1475. }
  1476. if($this->debug>2){error_log('New LP - In learnpath::get_next_index() - Problem - Returning 0',0);}
  1477. return 0;
  1478. }
  1479. /**
  1480. * Returns the package type ('scorm','aicc','scorm2004','dokeos','ppt'...)
  1481. *
  1482. * Generally, the package provided is in the form of a zip file, so the function
  1483. * has been written to test a zip file. If not a zip, the function will return the
  1484. * default return value: ''
  1485. * @param string the path to the file
  1486. * @param string the original name of the file
  1487. * @return string 'scorm','aicc','scorm2004','dokeos' or '' if the package cannot be recognized
  1488. */
  1489. function get_package_type($file_path,$file_name){
  1490. //get name of the zip file without the extension
  1491. $file_info = pathinfo($file_name);
  1492. $filename = $file_info['basename'];//name including extension
  1493. $extension = $file_info['extension'];//extension only
  1494. if(!empty($_POST['ppt2lp']) && !in_array($extension,array('dll','exe')))
  1495. {
  1496. return 'oogie';
  1497. }
  1498. if(!empty($_POST['woogie']) && !in_array($extension,array('dll','exe')))
  1499. {
  1500. return 'woogie';
  1501. }
  1502. $file_base_name = str_replace('.'.$extension,'',$filename); //filename without its extension
  1503. $zipFile = new pclZip($file_path);
  1504. // Check the zip content (real size and file extension)
  1505. $zipContentArray = $zipFile->listContent();
  1506. $package_type='';
  1507. $at_root = false;
  1508. $manifest = '';
  1509. //the following loop should be stopped as soon as we found the right imsmanifest.xml (how to recognize it?)
  1510. if (is_array($zipContentArray) && count($zipContentArray)>0) {
  1511. foreach($zipContentArray as $thisContent)
  1512. {
  1513. if ( preg_match('~.(php.*|phtml)$~i', $thisContent['filename']) )
  1514. {
  1515. //New behaviour: Don't do anything. These files will be removed in scorm::import_package
  1516. }
  1517. elseif(stristr($thisContent['filename'],'imsmanifest.xml')!==FALSE)
  1518. {
  1519. $manifest = $thisContent['filename']; //just the relative directory inside scorm/
  1520. $package_type = 'scorm';
  1521. break;//exit the foreach loop
  1522. }
  1523. elseif(preg_match('/aicc\//i',$thisContent['filename'])!=false)
  1524. {//if found an aicc directory... (!= false means it cannot be false (error) or 0 (no match))
  1525. $package_type='aicc';
  1526. //break;//don't exit the loop, because if we find an imsmanifest afterwards, we want it, not the AICC
  1527. }
  1528. else
  1529. {
  1530. $package_type = '';
  1531. }
  1532. }
  1533. }
  1534. return $package_type;
  1535. }
  1536. /**
  1537. * Gets the previous resource in queue (url). Also initialises time values for this viewing
  1538. * @return string URL to load into the viewer
  1539. */
  1540. function get_previous_index()
  1541. {
  1542. if($this->debug>0){error_log('New LP - In learnpath::get_previous_index()',0);}
  1543. $index = $this->index;
  1544. if(isset($this->ordered_items[$index-1])){
  1545. $index --;
  1546. while(isset($this->ordered_items[$index]) AND ($this->items[$this->ordered_items[$index]]->get_type() == 'dir' || $this->items[$this->ordered_items[$index]]->get_type() == 'dokeos_chapter'))
  1547. {
  1548. $index --;
  1549. if($index < 0){
  1550. return $this->index;
  1551. }
  1552. }
  1553. }else{
  1554. if($this->debug>2){error_log('New LP - get_previous_index() - there was no previous index available, reusing '.$index,0);}
  1555. //no previous item
  1556. }
  1557. return $index;
  1558. }
  1559. /**
  1560. * Gets item_id for the next element
  1561. * @return integer Previous item (DB) ID
  1562. */
  1563. function get_previous_item_id()
  1564. {
  1565. $new_index = $this->get_previous_index();
  1566. return $this->ordered_items[$new_index];
  1567. }
  1568. /**
  1569. * Gets the progress value from the progress_db attribute
  1570. * @return integer Current progress value
  1571. */
  1572. function get_progress()
  1573. {
  1574. if($this->debug>0){error_log('New LP - In learnpath::get_progress()',0);}
  1575. if(!empty($this->progress_db))
  1576. {
  1577. return $this->progress_db;
  1578. }
  1579. return 0;
  1580. }
  1581. /**
  1582. * Gets the progress value from the progress field in the database (allows use as abstract method)
  1583. * @param integer Learnpath ID
  1584. * @param integer User ID
  1585. * @param string Mode of display ('%','abs' or 'both')
  1586. * @param string Course database name (optional, defaults to '')
  1587. * @param boolean Whether to return null if no record was found (true), or 0 (false) (optional, defaults to false)
  1588. * @return integer Current progress value as found in the database
  1589. */
  1590. function get_db_progress($lp_id,$user_id,$mode='%', $course_db='', $sincere=false)
  1591. {
  1592. //if($this->debug>0){error_log('New LP - In learnpath::get_db_progress()',0);}
  1593. $table = Database::get_course_table('lp_view', $course_db);
  1594. $sql = "SELECT * FROM $table WHERE lp_id = $lp_id AND user_id = $user_id";
  1595. $res = api_sql_query($sql,__FILE__,__LINE__);
  1596. $view_id = 0;
  1597. if(Database::num_rows($res)>0)
  1598. {
  1599. $row = Database::fetch_array($res);
  1600. $progress = $row['progress'];
  1601. $view_id = $row['id'];
  1602. }
  1603. else
  1604. {
  1605. if($sincere)
  1606. {
  1607. return null;
  1608. }
  1609. }
  1610. if(empty($progress))
  1611. {
  1612. $progress = '0';
  1613. }
  1614. if($mode == '%')
  1615. {
  1616. return $progress.'%';
  1617. }
  1618. else
  1619. {
  1620. //get the number of items completed and the number of items total
  1621. $tbl = Database::get_course_table('lp_item', $course_db);
  1622. $sql = "SELECT count(*) FROM $tbl WHERE lp_id = ".$lp_id."
  1623. AND item_type NOT IN('dokeos_chapter','chapter','dir')";
  1624. $res = api_sql_query($sql, __FILE__, __LINE__);
  1625. $row = Database::fetch_array($res);
  1626. $total = $row[0];
  1627. $tbl_item_view = Database::get_course_table('lp_item_view', $course_db);
  1628. $tbl_item = Database::get_course_table('lp_item', $course_db);
  1629. //$sql = "SELECT count(distinct(lp_item_id)) FROM $tbl WHERE lp_view_id = ".$view_id." AND status IN ('passed','completed','succeeded')";
  1630. //trying as also counting browsed and failed items
  1631. $sql = "SELECT count(distinct(lp_item_id))
  1632. FROM $tbl_item_view as item_view
  1633. INNER JOIN $tbl_item as item
  1634. ON item.id = item_view.lp_item_id
  1635. AND item_type NOT IN('dokeos_chapter','chapter','dir')
  1636. WHERE lp_view_id = ".$view_id."
  1637. AND status IN ('passed','completed','succeeded','browsed','failed')";
  1638. $res = api_sql_query($sql, __FILE__, __LINE__);
  1639. $row = Database::fetch_array($res);
  1640. $completed = $row[0];
  1641. if($mode == 'abs')
  1642. {
  1643. return $completed.'/'.$total;
  1644. }
  1645. elseif($mode == 'both')
  1646. {
  1647. if($progress<($completed/($total?$total:1)))
  1648. {
  1649. $progress = number_format(($completed/($total?$total:1))*100,0);
  1650. }
  1651. return $progress.'% ('.$completed.'/'.$total.')';
  1652. }
  1653. }
  1654. return $progress;
  1655. }
  1656. function get_mediaplayer()
  1657. {
  1658. global $_course;
  1659. // Database table definition
  1660. $tbl_lp_item = Database::get_course_table('lp_item');
  1661. // getting all the information about the item
  1662. $sql = "SELECT * FROM " . $tbl_lp_item . " as lp WHERE lp.id = '" . $_SESSION['oLP']->current."'";
  1663. $result = api_sql_query($sql, __FILE__, __LINE__);
  1664. $row= mysql_fetch_assoc($result);
  1665. $output='';
  1666. if (!empty($row['audio']))
  1667. {
  1668. // the mp3 player
  1669. $output = '<div id="container"><a href="http://www.macromedia.com/go/getflashplayer">Get the Flash Player</a> to see this player.</div>';
  1670. $output .= '<script type="text/javascript" src="../inc/lib/mediaplayer/swfobject.js"></script>';
  1671. $output .= '<script type="text/javascript">
  1672. var s1 = new SWFObject("../inc/lib/mediaplayer/player.swf","ply","250","20","9","#FFFFFF");
  1673. s1.addParam("allowscriptaccess","always");
  1674. s1.addParam("flashvars","file='.api_get_path(WEB_COURSE_PATH).$_course['path'].'/document/audio/'.$row['audio'].'&image=preview.jpg&autostart=true");
  1675. s1.write("container");
  1676. </script>';
  1677. }
  1678. return $output;
  1679. }
  1680. /**
  1681. * Gets a progress bar for the learnpath by counting the number of items in it and the number of items
  1682. * completed so far.
  1683. * @param string Mode in which we want the values
  1684. * @param integer Progress value to display (optional but mandatory if used in abstract context)
  1685. * @param string Text to display near the progress value (optional but mandatory in abstract context)
  1686. * @param boolean true if it comes from a Diplay LP view
  1687. * @return string HTML string containing the progress bar
  1688. */
  1689. function get_progress_bar($mode='',$percentage=-1,$text_add='',$from_lp=false)
  1690. {
  1691. global $lp_theme_css;
  1692. // Setting up the CSS path of the current style if exists
  1693. if (!empty($lp_theme_css))
  1694. {
  1695. $css_path=api_get_path(WEB_CODE_PATH).'css/'.$lp_theme_css.'/images/';
  1696. }
  1697. else
  1698. {
  1699. $css_path='../img/';
  1700. }
  1701. //if($this->debug>0){error_log('New LP - In learnpath::get_progress_bar()',0);}
  1702. if(isset($this) && is_object($this) && ($percentage=='-1' OR $text_add==''))
  1703. {
  1704. list ($percentage, $text_add) = $this->get_progress_bar_text($mode);
  1705. }
  1706. $text = $percentage.$text_add;
  1707. //Default progress bar config
  1708. // times that will be greater or shorter
  1709. $factor=1.2;
  1710. if ($from_lp)
  1711. $progress_height='26';
  1712. else
  1713. $progress_height='16';
  1714. $size = str_replace('%','',$percentage);
  1715. $output = ''
  1716. //.htmlentities(get_lang('ScormCompstatus'),ENT_QUOTES,'ISO-8859-1')."<br />"
  1717. .'<table border="0" cellpadding="0" cellspacing="0"><tr><td>'
  1718. .'<img id="progress_img_limit_left" src="'.$css_path.'bar_1.gif" width="1" height="'.$progress_height.'">'
  1719. .'<img id="progress_img_full" src="'.$css_path.'bar_1u.gif" width="'.$size*$factor.'px" height="'.$progress_height.'" id="full_portion">'
  1720. .'<img id="progress_img_limit_middle" src="'.$css_path.'bar_1m.gif" width="1" height="'.$progress_height.'">';
  1721. if($percentage <= 98)
  1722. {
  1723. $output .= '<img id="progress_img_empty" src="'.$css_path.'bar_1r.gif" width="'.(100-$size)*$factor.'px" height="'.$progress_height.'" id="empty_portion">';
  1724. }
  1725. else
  1726. {
  1727. $output .= '<img id="progress_img_empty" src="'.$css_path.'bar_1r.gif" width="0" height="'.$progress_height.'" id="empty_portion">';
  1728. }
  1729. $output .= '<img id="progress_bar_img_limit_right" src="'.$css_path.'bar_1.gif" width="1" height="'.$progress_height.'"></td></tr></table>'
  1730. .'<div class="progresstext" id="progress_text">'.$text.'</div>';
  1731. return $output;
  1732. }
  1733. /**
  1734. * Gets the progress bar info to display inside the progress bar. Also used by scorm_api.php
  1735. * @param string Mode of display (can be '%' or 'abs').abs means we display a number of completed elements per total elements
  1736. * //@param integer Additional steps to fake as completed
  1737. * @return list Percentage or number and symbol (% or /xx)
  1738. */
  1739. function get_progress_bar_text($mode='',$add=0)
  1740. {
  1741. if($this->debug>0){error_log('New LP - In learnpath::get_progress_bar_text()',0);}
  1742. if(empty($mode)){$mode = $this->progress_bar_mode;}
  1743. $total_items = $this->get_total_items_count_without_chapters();
  1744. if($this->debug>2){error_log('New LP - Total items available in this learnpath: '.$total_items,0);}
  1745. $i = $this->get_complete_items_count();
  1746. if($this->debug>2){error_log('New LP - Items completed so far: '.$i,0);}
  1747. if($add != 0){
  1748. $i += $add;
  1749. if($this->debug>2){error_log('New LP - Items completed so far (+modifier): '.$i,0);}
  1750. }
  1751. $text = '';
  1752. if($i>$total_items){
  1753. $i = $total_items;
  1754. }
  1755. if($mode == '%'){
  1756. if($total_items>0){
  1757. $percentage = ((float)$i/(float)$total_items)*100;
  1758. }
  1759. else
  1760. {
  1761. $percentage = 0;
  1762. }
  1763. $percentage = number_format($percentage,0);
  1764. $text = '%';
  1765. }elseif($mode == 'abs'){
  1766. $percentage = $i;
  1767. $text = '/'.$total_items;
  1768. }
  1769. return array($percentage,$text);
  1770. }
  1771. /**
  1772. * Gets the progress bar mode
  1773. * @return string The progress bar mode attribute
  1774. */
  1775. function get_progress_bar_mode()
  1776. {
  1777. if($this->debug>0){error_log('New LP - In learnpath::get_progress_bar_mode()',0);}
  1778. if(!empty($this->progress_bar_mode))
  1779. {
  1780. return $this->progress_bar_mode;
  1781. }else{
  1782. return '%';
  1783. }
  1784. }
  1785. /**
  1786. * Gets the learnpath proximity (remote or local)
  1787. * @return string Learnpath proximity
  1788. */
  1789. function get_proximity()
  1790. {
  1791. if($this->debug>0){error_log('New LP - In learnpath::get_proximity()',0);}
  1792. if(!empty($this->proximity)){return $this->proximity;}else{return '';}
  1793. }
  1794. /**
  1795. * Gets the learnpath theme (remote or local)
  1796. * @return string Learnpath theme
  1797. */
  1798. function get_theme()
  1799. {
  1800. if($this->debug>0){error_log('New LP - In learnpath::get_theme()',0);}
  1801. if(!empty($this->theme)){return $this->theme;}else{return '';}
  1802. }
  1803. /**
  1804. * Gets the learnpath image
  1805. * @return string Web URL of the LP image
  1806. */
  1807. function get_preview_image()
  1808. {
  1809. if($this->debug>0){error_log('New LP - In learnpath::get_preview_image()',0);}
  1810. if(!empty($this->preview_image)){return $this->preview_image;}else{return '';}
  1811. }
  1812. /**
  1813. * Gets the learnpath author
  1814. * @return string LP's author
  1815. */
  1816. function get_author()
  1817. {
  1818. if($this->debug>0){error_log('New LP - In learnpath::get_author()',0);}
  1819. if(!empty($this->author)){return $this->author;}else{return '';}
  1820. }
  1821. /**
  1822. * Generate a new prerequisites string for a given item. If this item was a sco and
  1823. * its prerequisites were strings (instead of IDs), then transform those strings into
  1824. * IDs, knowing that SCORM IDs are kept in the "ref" field of the lp_item table.
  1825. * Prefix all item IDs that end-up in the prerequisites string by "ITEM_" to use the
  1826. * same rule as the scorm_export() method
  1827. * @param integer Item ID
  1828. * @return string Prerequisites string ready for the export as SCORM
  1829. */
  1830. function get_scorm_prereq_string($item_id)
  1831. {
  1832. if($this->debug>0){error_log('New LP - In learnpath::get_scorm_prereq_string()',0);}
  1833. if(!is_object($this->items[$item_id])){return false;}
  1834. $oItem = $this->items[$item_id];
  1835. $prereq = $oItem->get_prereq_string();
  1836. if(empty($prereq))
  1837. {
  1838. return '';
  1839. }
  1840. if(preg_match('/^\d+$/',$prereq) && is_object($this->items[$prereq]))
  1841. { //if the prerequisite is a simple integer ID and this ID exists as an item ID,
  1842. //then simply return it (with the ITEM_ prefix)
  1843. return 'ITEM_'.$prereq;
  1844. }
  1845. else
  1846. {
  1847. if(isset($this->refs_list[$prereq]))
  1848. {
  1849. //it's a simple string item from which the ID can be found in the refs list
  1850. //so we can transform it directly to an ID for export
  1851. return 'ITEM_'.$this->refs_list[$prereq];
  1852. }
  1853. else
  1854. {
  1855. //last case, if it's a complex form, then find all the IDs (SCORM strings)
  1856. //and replace them, one by one, by the internal IDs (dokeos db)
  1857. //TODO modify the '*' replacement to replace the multiplier in front of it
  1858. //by a space as well
  1859. $find = array('&','|','~','=','<>','{','}','*','(',')');
  1860. $replace = array(' ',' ',' ',' ',' ',' ',' ',' ',' ',' ');
  1861. $prereq_mod = str_replace($find,$replace,$prereq);
  1862. $ids = split(' ',$prereq_mod);
  1863. foreach($ids as $id)
  1864. {
  1865. $id = trim($id);
  1866. if(isset($this->refs_list[$id]))
  1867. {
  1868. $prereq = preg_replace('/[^a-zA-Z_0-9]('.$id.')[^a-zA-Z_0-9]/','ITEM_'.$this->refs_list[$id],$prereq);
  1869. }
  1870. }
  1871. error_log('New LP - In learnpath::get_scorm_prereq_string(): returning modified string: '.$prereq,0);
  1872. return $prereq;
  1873. }
  1874. }
  1875. }
  1876. /**
  1877. * Returns the XML DOM document's node
  1878. * @param resource Reference to a list of objects to search for the given ITEM_*
  1879. * @param string The identifier to look for
  1880. * @return mixed The reference to the element found with that identifier. False if not found
  1881. */
  1882. function get_scorm_xml_node(&$children,$id)
  1883. {
  1884. for($i=0;$i<$children->length;$i++){
  1885. $item_temp = $children->item($i);
  1886. if ($item_temp -> nodeName == 'item')
  1887. {
  1888. if($item_temp->getAttribute('identifier') == $id)
  1889. {
  1890. return $item_temp;
  1891. }
  1892. }
  1893. $subchildren = $item_temp->childNodes;
  1894. if($subchildren->length>0)
  1895. {
  1896. $val = $this->get_scorm_xml_node($subchildren,$id);
  1897. if(is_object($val))
  1898. {
  1899. return $val;
  1900. }
  1901. }
  1902. }
  1903. return false;
  1904. }
  1905. /**
  1906. * Returns a usable array of stats related to the current learnpath and user
  1907. * @return array Well-formatted array containing status for the current learnpath
  1908. */
  1909. function get_stats()
  1910. {
  1911. if($this->debug>0){error_log('New LP - In learnpath::get_stats()',0);}
  1912. //TODO
  1913. }
  1914. /**
  1915. * Static method. Can be re-implemented by children. Gives an array of statistics for
  1916. * the given course (for all learnpaths and all users)
  1917. * @param string Course code
  1918. * @return array Well-formatted array containing status for the course's learnpaths
  1919. */
  1920. function get_stats_course($course)
  1921. {
  1922. //if($this->debug>0){error_log('New LP - In learnpath::get_stats_course()',0);}
  1923. //TODO
  1924. }
  1925. /**
  1926. * Static method. Can be re-implemented by children. Gives an array of statistics for
  1927. * the given course and learnpath (for all users)
  1928. * @param string Course code
  1929. * @param integer Learnpath ID
  1930. * @return array Well-formatted array containing status for the specified learnpath
  1931. */
  1932. function get_stats_lp($course,$lp)
  1933. {
  1934. //if($this->debug>0){error_log('New LP - In learnpath::get_stats_lp()',0);}
  1935. //TODO
  1936. }
  1937. /**
  1938. * Static method. Can be re-implemented by children. Gives an array of statistics for
  1939. * the given course, learnpath and user.
  1940. * @param string Course code
  1941. * @param integer Learnpath ID
  1942. * @param integer User ID
  1943. * @return array Well-formatted array containing status for the specified learnpath and user
  1944. */
  1945. function get_stats_lp_user($course,$lp,$user)
  1946. {
  1947. //if($this->debug>0){error_log('New LP - In learnpath::get_stats_lp_user()',0);}
  1948. //TODO
  1949. }
  1950. /**
  1951. * Static method. Can be re-implemented by children. Gives an array of statistics for
  1952. * the given course and learnpath (for all users)
  1953. * @param string Course code
  1954. * @param integer User ID
  1955. * @return array Well-formatted array containing status for the user's learnpaths
  1956. */
  1957. function get_stats_user($course,$user)
  1958. {
  1959. //if($this->debug>0){error_log('New LP - In learnpath::get_stats_user()',0);}
  1960. //TODO
  1961. }
  1962. /**
  1963. * Gets the status list for all LP's items
  1964. * @return array Array of [index] => [item ID => current status]
  1965. */
  1966. function get_items_status_list(){
  1967. if($this->debug>0){error_log('New LP - In learnpath::get_items_status_list()',0);}
  1968. $list = array();
  1969. foreach($this->ordered_items as $item_id)
  1970. {
  1971. $list[]= array($item_id => $this->items[$item_id]->get_status());
  1972. }
  1973. return $list;
  1974. }
  1975. /**
  1976. * Return the number of interactions for the given learnpath Item View ID.
  1977. * This method can be used as static.
  1978. * @param integer Item View ID
  1979. * @return integer Number of interactions
  1980. */
  1981. function get_interactions_count_from_db($lp_iv_id=0){
  1982. if(empty($lp_iv_id)){return -1;}
  1983. $table = Database::get_course_table('lp_iv_interaction');
  1984. $sql = "SELECT count(*) FROM $table WHERE lp_iv_id = $lp_iv_id";
  1985. $res = api_sql_query($sql,__FILE__,__LINE__);
  1986. $row = Database::fetch_array($res);
  1987. $num = $row[0];
  1988. return $num;
  1989. }
  1990. /**
  1991. * Return the interactions as an array for the given lp_iv_id.
  1992. * This method can be used as static.
  1993. * @param integer Learnpath Item View ID
  1994. * @return array
  1995. * @todo Translate labels
  1996. */
  1997. function get_iv_interactions_array($lp_iv_id=0){
  1998. $list = array();
  1999. $table = Database::get_course_table('lp_iv_interaction');
  2000. $sql = "SELECT * FROM $table WHERE lp_iv_id = $lp_iv_id ORDER BY order_id ASC";
  2001. $res = api_sql_query($sql,__FILE__,__LINE__);
  2002. $num = Database::num_rows($res);
  2003. if($num>0){
  2004. $list[] = array(
  2005. "order_id"=>htmlentities(get_lang('Order')),
  2006. "id"=>htmlentities(get_lang('InteractionID')),
  2007. "type"=>htmlentities(get_lang('Type')),
  2008. "time"=>htmlentities(get_lang('TimeFinished')),
  2009. "correct_responses"=>htmlentities(get_lang('CorrectAnswers')),
  2010. "student_response"=>htmlentities(get_lang('StudentResponse')),
  2011. "result"=>htmlentities(get_lang('Result')),
  2012. "latency"=>htmlentities(get_lang('LatencyTimeSpent')));
  2013. while ($row = Database::fetch_array($res)){
  2014. $list[] = array(
  2015. "order_id"=>($row['order_id']+1),
  2016. "id"=>urldecode($row['interaction_id']),//urldecode because they often have %2F or stuff like that
  2017. "type"=>$row['interaction_type'],
  2018. "time"=>$row['completion_time'],
  2019. //"correct_responses"=>$row['correct_responses'],
  2020. //hide correct responses from students
  2021. "correct_responses"=>'',
  2022. "student_response"=>$row['student_response'],
  2023. "result"=>$row['result'],
  2024. "latency"=>$row['latency']);
  2025. }
  2026. }
  2027. return $list;
  2028. }
  2029. /**
  2030. * Return the number of objectives for the given learnpath Item View ID.
  2031. * This method can be used as static.
  2032. * @param integer Item View ID
  2033. * @return integer Number of objectives
  2034. */
  2035. function get_objectives_count_from_db($lp_iv_id=0){
  2036. if(empty($lp_iv_id)){return -1;}
  2037. $table = Database::get_course_table('lp_iv_objective');
  2038. $sql = "SELECT count(*) FROM $table WHERE lp_iv_id = $lp_iv_id";
  2039. $res = api_sql_query($sql,__FILE__,__LINE__);
  2040. $row = Database::fetch_array($res);
  2041. $num = $row[0];
  2042. return $num;
  2043. }
  2044. /**
  2045. * Return the objectives as an array for the given lp_iv_id.
  2046. * This method can be used as static.
  2047. * @param integer Learnpath Item View ID
  2048. * @return array
  2049. * @todo Translate labels
  2050. */
  2051. function get_iv_objectives_array($lp_iv_id=0){
  2052. $list = array();
  2053. $table = Database::get_course_table('lp_iv_objective');
  2054. $sql = "SELECT * FROM $table WHERE lp_iv_id = $lp_iv_id ORDER BY order_id ASC";
  2055. $res = api_sql_query($sql,__FILE__,__LINE__);
  2056. $num = Database::num_rows($res);
  2057. if($num>0){
  2058. $list[] = array(
  2059. "order_id"=>htmlentities(get_lang('Order')),
  2060. "objective_id"=>htmlentities(get_lang('ObjectiveID')),
  2061. "score_raw"=>htmlentities(get_lang('ObjectiveRawScore')),
  2062. "score_max"=>htmlentities(get_lang('ObjectiveMaxScore')),
  2063. "score_min"=>htmlentities(get_lang('ObjectiveMinScore')),
  2064. "status"=>htmlentities(get_lang('ObjectiveStatus')));
  2065. while ($row = Database::fetch_array($res)){
  2066. $list[] = array(
  2067. "order_id"=>($row['order_id']+1),
  2068. "objective_id"=>urldecode($row['objective_id']),//urldecode because they often have %2F or stuff like that
  2069. "score_raw"=>$row['score_raw'],
  2070. "score_max"=>$row['score_max'],
  2071. "score_min"=>$row['score_min'],
  2072. "status"=>$row['status']);
  2073. }
  2074. }
  2075. return $list;
  2076. }
  2077. /**
  2078. * Generate and return the table of contents for this learnpath. The (flat) table returned can be
  2079. * used by get_html_toc() to be ready to display
  2080. * @return array TOC as a table with 4 elements per row: title, link, status and level
  2081. */
  2082. function get_toc()
  2083. {
  2084. if($this->debug>0){error_log('New LP - In learnpath::get_toc()',0);}
  2085. $toc = array();
  2086. //echo "<pre>".print_r($this->items,true)."</pre>";
  2087. foreach($this->ordered_items as $item_id)
  2088. {
  2089. if($this->debug>2){error_log('New LP - learnpath::get_toc(): getting info for item '.$item_id,0);}
  2090. //TODO change this link generation and use new function instead
  2091. $toc[] = array(
  2092. 'id'=>$item_id,
  2093. 'title'=>$this->items[$item_id]->get_title(),
  2094. //'link'=>get_addedresource_link_in_learnpath('document',$item_id,1),
  2095. 'status'=>$this->items[$item_id]->get_status(),
  2096. 'level'=>$this->items[$item_id]->get_level(),
  2097. 'type' =>$this->items[$item_id]->get_type(),
  2098. 'description'=>$this->items[$item_id]->get_description(),
  2099. 'path'=>$this->items[$item_id]->get_path(),
  2100. );
  2101. }
  2102. if($this->debug>2){error_log('New LP - In learnpath::get_toc() - TOC array: '.print_r($toc,true),0);}
  2103. return $toc;
  2104. }
  2105. /**
  2106. * Gets the learning path type
  2107. * @param boolean Return the name? If false, return the ID. Default is false.
  2108. * @return mixed Type ID or name, depending on the parameter
  2109. */
  2110. function get_type($get_name = false)
  2111. {
  2112. $res = false;
  2113. if($this->debug>0){error_log('New LP - In learnpath::get_type()',0);}
  2114. if(!empty($this->type))
  2115. {
  2116. if($get_name)
  2117. {
  2118. //get it from the lp_type table in main db
  2119. }else{
  2120. $res = $this->type;
  2121. }
  2122. }
  2123. if($this->debug>2){error_log('New LP - In learnpath::get_type() - Returning '.($res==false?'false':$res),0);}
  2124. return $res;
  2125. }
  2126. /**
  2127. * Gets the learning path type as static method
  2128. * @param boolean Return the name? If false, return the ID. Default is false.
  2129. * @return mixed Type ID or name, depending on the parameter
  2130. */
  2131. function get_type_static($lp_id=0)
  2132. {
  2133. $tbl_lp = Database::get_course_table('lp');
  2134. $sql = "SELECT lp_type FROM $tbl_lp WHERE id = '".$lp_id."'";
  2135. $res = api_sql_query($sql, __FILE__, __LINE__);
  2136. if($res===false){ return null;}
  2137. if(Database::num_rows($res)<=0){return null;}
  2138. $row = Database::fetch_array($res);
  2139. return $row['lp_type'];
  2140. }
  2141. /**
  2142. * Gets a flat list of item IDs ordered for display (level by level ordered by order_display)
  2143. * This method can be used as abstract and is recursive
  2144. * @param integer Learnpath ID
  2145. * @param integer Parent ID of the items to look for
  2146. * @return mixed Ordered list of item IDs or false on error
  2147. */
  2148. function get_flat_ordered_items_list($lp,$parent=0)
  2149. {
  2150. //if($this->debug>0){error_log('New LP - In learnpath::get_flat_ordered_items_list('.$lp.','.$parent.')',0);}
  2151. $list = array();
  2152. if(empty($lp)){return false;}
  2153. $tbl_lp_item = Database::get_course_table('lp_item');
  2154. $sql = "SELECT * FROM $tbl_lp_item WHERE lp_id = $lp AND parent_item_id = $parent ORDER BY display_order";
  2155. $res = api_sql_query($sql,__FILE__,__LINE__);
  2156. while($row = Database::fetch_array($res)){
  2157. $sublist = learnpath::get_flat_ordered_items_list($lp,$row['id']);
  2158. $list[] = $row['id'];
  2159. foreach($sublist as $item){
  2160. $list[] = $item;
  2161. }
  2162. }
  2163. return $list;
  2164. }
  2165. /**
  2166. * Uses the table generated by get_toc() and returns an HTML-formatted string ready to display
  2167. * @return string HTML TOC ready to display
  2168. */
  2169. /*function get_html_toc()
  2170. {
  2171. if($this->debug>0){error_log('New LP - In learnpath::get_html_toc()',0);}
  2172. $list = $this->get_toc();
  2173. //echo $this->current;
  2174. //$parent = $this->items[$this->current]->get_parent();
  2175. //if(empty($parent)){$parent = $this->ordered_items[$this->items[$this->current]->get_previous_index()];}
  2176. $html = '<div class="inner_lp_toc">'."\n" ;
  2177. // " onchange=\"javascript:document.getElementById('toc_$parent').focus();\">\n";
  2178. require_once('resourcelinker.inc.php');
  2179. //temp variables
  2180. $mycurrentitemid = $this->get_current_item_id();
  2181. foreach($list as $item)
  2182. {
  2183. if($this->debug>2){error_log('New LP - learnpath::get_html_toc(): using item '.$item['id'],0);}
  2184. //TODO complete this
  2185. $icon_name = array('not attempted' => '../img/notattempted.gif',
  2186. 'incomplete' => '../img/incomplete.gif',
  2187. 'failed' => '../img/failed.gif',
  2188. 'completed' => '../img/completed.gif',
  2189. 'passed' => '../img/passed.gif',
  2190. 'succeeded' => '../img/succeeded.gif',
  2191. 'browsed' => '../img/completed.gif');
  2192. $style = 'scorm_item';
  2193. if($item['id'] == $this->current){
  2194. $style = 'scorm_item_highlight';
  2195. }
  2196. //the anchor will let us center the TOC on the currently viewed item &^D
  2197. $html .= '<a name="atoc_'.$item['id'].'" /><div class="'.$style.'" style="padding-left: '.($item['level']/2).'em; padding-right:'.($item['level']/2).'em" id="toc_'.$item['id'].'" >' .
  2198. '<img id="toc_img_'.$item['id'].'" class="scorm_status_img" src="'.$icon_name[$item['status']].'" alt="'.substr($item['status'],0,1).'" />';
  2199. //$title = htmlspecialchars($item['title'],ENT_QUOTES,$this->encoding);
  2200. $title = $item['title'];
  2201. if(empty($title)){
  2202. $title = rl_get_resource_name(api_get_course_id(),$this->get_id(),$item['id']);
  2203. $title = htmlspecialchars($title,ENT_QUOTES,$this->encoding);
  2204. }
  2205. if(empty($title))$title = '-';
  2206. if($item['type']!='dokeos_chapter' and $item['type']!='dir'){
  2207. //$html .= "<a href='lp_controller.php?".api_get_cidReq()."&action=content&lp_id=".$this->get_id()."&item_id=".$item['id']."' target='lp_content_frame_name'>".$title."</a>" ;
  2208. $url = $this->get_link('http',$item['id']);
  2209. //$html .= '<a href="'.$url.'" target="content_name" onclick="top.load_item('.$item['id'].',\''.$url.'\');">'.$title.'</a>' ;
  2210. //$html .= '<a href="" onclick="top.load_item('.$item['id'].',\''.$url.'\');return false;">'.$title.'</a>' ;
  2211. $html .= '<a href="" onclick="dokeos_xajax_handler.switch_item(' .
  2212. $mycurrentitemid.',' .
  2213. $item['id'].');' .
  2214. 'return false;" >'.$title.'</a>' ;
  2215. }else{
  2216. $html .= $title;
  2217. }
  2218. $html .= "</div>\n";
  2219. }
  2220. $html .= "</div>\n";
  2221. return $html;
  2222. }*/
  2223. /**
  2224. * Uses the table generated by get_toc() and returns an HTML-formatted string ready to display
  2225. * @return string HTML TOC ready to display
  2226. */
  2227. function get_html_toc()
  2228. {
  2229. if($this->debug>0){error_log('New LP - In learnpath::get_html_toc()',0);}
  2230. $list = $this->get_toc();
  2231. $mych = api_get_setting('platform_charset');
  2232. //echo $this->current;
  2233. //$parent = $this->items[$this->current]->get_parent();
  2234. //if(empty($parent)){$parent = $this->ordered_items[$this->items[$this->current]->get_previous_index()];}
  2235. $html= '<div class="scorm_title"><div class="scorm_title_text">'.mb_convert_encoding($this->get_name(),$this->encoding,$mych).'</div></div>';
  2236. // build, display
  2237. if(api_is_allowed_to_edit())
  2238. {
  2239. $html .='<div class="actions_lp">';
  2240. $html .= "<a href='lp_controller.php?".api_get_cidreq()."&amp;action=build&amp;lp_id=".$this->lp_id."' target='_parent'>".Display::return_icon('learnpath_build.gif', get_lang('Build')).' '.mb_convert_encoding(get_lang('Build'),$this->encoding,$mych)."</a>";
  2241. $html .= "<a href='lp_controller.php?".api_get_cidreq()."&amp;action=admin_view&amp;lp_id=".$this->lp_id."' target='_parent'>".Display::return_icon('learnpath_organize.gif', get_lang('BasicOverview')).' '.mb_convert_encoding(get_lang('BasicOverview'),$this->encoding,$mych)."</a>";
  2242. $html .= '<span>'.Display::return_icon('learnpath_view.gif', get_lang("Display")).' '.mb_convert_encoding(get_lang("Display"),$this->encoding,$mych).'</span>';
  2243. $html .= '</div>';
  2244. unset($mych);
  2245. }
  2246. $html.= '<div class="inner_lp_toc">'."\n" ;
  2247. //$html.= '<div class="scorm_title"><div class="scorm_title_text">'.mb_convert_encoding($this->get_name(),$this->encoding,$mych).'</div></div>';
  2248. // " onchange=\"javascript:document.getElementById('toc_$parent').focus();\">\n";
  2249. require_once('resourcelinker.inc.php');
  2250. //temp variables
  2251. $mycurrentitemid = $this->get_current_item_id();
  2252. $color_counter=0;
  2253. $i=0;
  2254. foreach($list as $item)
  2255. {
  2256. if($this->debug>2){error_log('New LP - learnpath::get_html_toc(): using item '.$item['id'],0);}
  2257. //TODO complete this
  2258. $icon_name = array('not attempted' => '../img/notattempted.gif',
  2259. 'incomplete' => '../img/incomplete.gif',
  2260. 'failed' => '../img/failed.gif',
  2261. 'completed' => '../img/completed.gif',
  2262. 'passed' => '../img/passed.gif',
  2263. 'succeeded' => '../img/succeeded.gif',
  2264. 'browsed' => '../img/completed.gif');
  2265. $style = 'scorm_item';
  2266. $scorm_color_background='scorm_item';
  2267. $style_item ='scorm_item';
  2268. $current=false;
  2269. if($item['id'] == $this->current)
  2270. {
  2271. $style = 'scorm_item_highlight';
  2272. $scorm_color_background ='scorm_item_highlight';
  2273. }
  2274. else
  2275. if ($color_counter%2==0)
  2276. {
  2277. $scorm_color_background='scorm_item_1';
  2278. }
  2279. else
  2280. {
  2281. $scorm_color_background='scorm_item_2';
  2282. }
  2283. if ($scorm_color_background!='')
  2284. {
  2285. $html .= '<div id="toc_'.$item['id'].'" class="'.$scorm_color_background.'">';
  2286. }
  2287. //the anchor will let us center the TOC on the currently viewed item &^D
  2288. if($item['type']!='dokeos_module' AND $item['type']!='dokeos_chapter')
  2289. {
  2290. $html .= '<a name="atoc_'.$item['id'].'" />';
  2291. $html .= '<div class="'.$style_item.'" style="padding-left: '.($item['level']*1.5).'em; padding-right:'.($item['level']/2).'em" title="'.$item['description'].'" >';
  2292. }
  2293. else
  2294. {
  2295. $html .= '<div class="'.$style_item.'" style="padding-left: '.($item['level']*2).'em; padding-right:'.($item['level']*1.5).'em" title="'.$item['description'].'" >';
  2296. }
  2297. $title=$item['title'];
  2298. if(empty($title))
  2299. {
  2300. $title = rl_get_resource_name(api_get_course_id(),$this->get_id(),$item['id']);
  2301. }
  2302. $title = html_entity_decode($title,ENT_QUOTES,$this->encoding);
  2303. if($item['type']!='dokeos_chapter' and $item['type']!='dir' AND $item['type']!='dokeos_module')
  2304. {
  2305. //$html .= "<a href='lp_controller.php?".api_get_cidreq()."&action=content&lp_id=".$this->get_id()."&item_id=".$item['id']."' target='lp_content_frame_name'>".$title."</a>" ;
  2306. $url = $this->get_link('http',$item['id']);
  2307. //$html .= '<a href="'.$url.'" target="content_name" onclick="top.load_item('.$item['id'].',\''.$url.'\');">'.$title.'</a>' ;
  2308. //$html .= '<a href="" onclick="top.load_item('.$item['id'].',\''.$url.'\');return false;">'.$title.'</a>' ;
  2309. //<img align="absbottom" width="13" height="13" src="../img/lp_document.png">&nbsp;
  2310. $html .= '<a href="" onclick="dokeos_xajax_handler.switch_item(' .
  2311. $mycurrentitemid.',' .
  2312. $item['id'].');' .
  2313. 'return false;" >'.stripslashes($title).'</a>' ;
  2314. }
  2315. elseif($item['type']=='dokeos_module' || $item['type']=='dokeos_chapter')
  2316. {
  2317. $html .= "<img align='absbottom' width='13' height='13' src='../img/lp_dokeos_module.png'>&nbsp;".stripslashes($title);
  2318. }
  2319. elseif($item['type']=='dir')
  2320. {
  2321. $html .= stripslashes($title);
  2322. }
  2323. $tbl_track_e_exercises = Database::get_statistic_table(TABLE_STATISTIC_TRACK_E_EXERCICES);
  2324. $tbl_lp_item = Database::get_course_table(TABLE_LP_ITEM);
  2325. $user_id = api_get_user_id();
  2326. $course_id = api_get_course_id();
  2327. $sql = "SELECT path FROM $tbl_track_e_exercises, $tbl_lp_item
  2328. WHERE path = '".$item['path']."' AND exe_user_id = '$user_id' AND exe_cours_id = '$course_id' AND path = exe_exo_id AND status <> 'incomplete'";
  2329. $result = api_sql_query($sql,__FILE__,__LINE__);
  2330. $count = Database::num_rows($result);
  2331. if ($item['type']=='quiz') {
  2332. if ($item['status']=='completed') {
  2333. $html .= "<img id='toc_img_".$item['id']."' src='".$icon_name[$item['status']]."' alt='".substr($item['status'],0,1)."' />";
  2334. }
  2335. } else {
  2336. $html .= "<img id='toc_img_".$item['id']."' src='".$icon_name[$item['status']]."' alt='".substr($item['status'],0,1)."' />";
  2337. }
  2338. $html .= "</div>";
  2339. if ($scorm_color_background!='')
  2340. {
  2341. $html .= '</div>';
  2342. }
  2343. $color_counter++;
  2344. }
  2345. $html .= "</div>\n";
  2346. return $html;
  2347. }
  2348. /**
  2349. * Gets the learnpath maker name - generally the editor's name
  2350. * @return string Learnpath maker name
  2351. */
  2352. function get_maker()
  2353. {
  2354. if($this->debug>0){error_log('New LP - In learnpath::get_maker()',0);}
  2355. if(!empty($this->maker)){return $this->maker;}else{return '';}
  2356. }
  2357. /**
  2358. * Gets the user-friendly message stored in $this->message
  2359. * @return string Message
  2360. */
  2361. function get_message(){
  2362. if($this->debug>0){error_log('New LP - In learnpath::get_message()',0);}
  2363. return $this->message;
  2364. }
  2365. /**
  2366. * Gets the learnpath name/title
  2367. * @return string Learnpath name/title
  2368. */
  2369. function get_name()
  2370. {
  2371. if($this->debug>0){error_log('New LP - In learnpath::get_name()',0);}
  2372. if(!empty($this->name)){return $this->name;}else{return 'N/A';}
  2373. }
  2374. /**
  2375. * Gets a link to the resource from the present location, depending on item ID.
  2376. * @param string Type of link expected
  2377. * @param integer Learnpath item ID
  2378. * @return string Link to the lp_item resource
  2379. */
  2380. function get_link($type='http',$item_id=null)
  2381. {
  2382. if($this->debug>0){error_log('New LP - In learnpath::get_link('.$type.','.$item_id.')',0);}
  2383. if(empty($item_id))
  2384. {
  2385. if($this->debug>2){error_log('New LP - In learnpath::get_link() - no item id given in learnpath::get_link(), using current: '.$this->get_current_item_id(),0);}
  2386. $item_id = $this->get_current_item_id();
  2387. }
  2388. if(empty($item_id)){
  2389. if($this->debug>2){error_log('New LP - In learnpath::get_link() - no current item id found in learnpath object',0);}
  2390. //still empty, this means there was no item_id given and we are not in an object context or
  2391. //the object property is empty, return empty link
  2392. $item_id = $this->first();
  2393. return '';
  2394. }
  2395. $file = '';
  2396. $lp_table = Database::get_course_table(TABLE_LP_MAIN);
  2397. $lp_item_table = Database::get_course_table(TABLE_LP_ITEM);
  2398. $sel = "SELECT l.lp_type as ltype, l.path as lpath, li.item_type as litype, li.path as lipath, li.parameters as liparams " .
  2399. "FROM $lp_table l, $lp_item_table li WHERE li.id = $item_id AND li.lp_id = l.id";
  2400. if($this->debug>2){error_log('New LP - In learnpath::get_link() - selecting item '.$sel,0);}
  2401. $res = api_sql_query($sel, __FILE__, __LINE__);
  2402. if(Database::num_rows($res)>0)
  2403. {
  2404. $row = Database::fetch_array($res);
  2405. //var_dump($row);
  2406. $lp_type = $row['ltype'];
  2407. $lp_path = $row['lpath'];
  2408. $lp_item_type = $row['litype'];
  2409. $lp_item_path = $row['lipath'];
  2410. $lp_item_params = $row['liparams'];
  2411. if(empty($lp_item_params) && strpos($lp_item_path,'?')!==false)
  2412. {
  2413. list($lp_item_path,$lp_item_params) = explode('?',$lp_item_path);
  2414. }
  2415. //$lp_item_params = '?'.$lp_item_params;
  2416. //add ? if none - left commented to give freedom to scorm implementation
  2417. //if(substr($lp_item_params,0,1)!='?'){
  2418. // $lp_item_params = '?'.$lp_item_params;
  2419. //}
  2420. $sys_course_path = api_get_path(SYS_COURSE_PATH).api_get_course_path();
  2421. if($type == 'http'){
  2422. $course_path = api_get_path(WEB_COURSE_PATH).api_get_course_path(); //web path
  2423. }else{
  2424. $course_path = $sys_course_path; //system path
  2425. }
  2426. //now go through the specific cases to get the end of the path
  2427. switch($lp_type){
  2428. case 1:
  2429. if($lp_item_type == 'dokeos_chapter'){
  2430. $file = 'lp_content.php?type=dir';
  2431. }else{
  2432. require_once('resourcelinker.inc.php');
  2433. $file = rl_get_resource_link_for_learnpath(api_get_course_id(),$this->get_id(),$item_id);
  2434. $tmp_array=explode("/",$file);
  2435. $document_name=$tmp_array[count($tmp_array)-1];
  2436. if(strpos($document_name,'_DELETED_')){
  2437. $file = 'blank.php?error=document_deleted';
  2438. }
  2439. }
  2440. break;
  2441. case 2:
  2442. if($this->debug>2){error_log('New LP - In learnpath::get_link() '.__LINE__.' - Item type: '.$lp_item_type,0);}
  2443. if($lp_item_type!='dir'){
  2444. //Quite complex here:
  2445. //we want to make sure 'http://' (and similar) links can
  2446. //be loaded as is (withouth the Dokeos path in front) but
  2447. //some contents use this form: resource.htm?resource=http://blablabla
  2448. //which means we have to find a protocol at the path's start, otherwise
  2449. //it should not be considered as an external URL
  2450. //if($this->prerequisites_match($item_id)){
  2451. if(preg_match('#^[a-zA-Z]{2,5}://#',$lp_item_path)!=0){
  2452. if($this->debug>2){error_log('New LP - In learnpath::get_link() '.__LINE__.' - Found match for protocol in '.$lp_item_path,0);}
  2453. //distant url, return as is
  2454. $file = $lp_item_path;
  2455. }else{
  2456. if($this->debug>2){error_log('New LP - In learnpath::get_link() '.__LINE__.' - No starting protocol in '.$lp_item_path,0);}
  2457. //prevent getting untranslatable urls
  2458. $lp_item_path = preg_replace('/%2F/','/',$lp_item_path);
  2459. $lp_item_path = preg_replace('/%3A/',':',$lp_item_path);
  2460. //prepare the path
  2461. $file = $course_path.'/scorm/'.$lp_path.'/'.$lp_item_path;
  2462. //TODO fix this for urls with protocol header
  2463. $file = str_replace('//','/',$file);
  2464. $file = str_replace(':/','://',$file);
  2465. if(substr($lp_path,-1)=='/')
  2466. {
  2467. $lp_path = substr($lp_path,0,-1);
  2468. }
  2469. if(!is_file(realpath($sys_course_path.'/scorm/'.$lp_path.'/'.$lp_item_path)))
  2470. {//if file not found
  2471. $decoded = html_entity_decode($lp_item_path);
  2472. list($decoded) = explode('?',$decoded);
  2473. if(!is_file(realpath($sys_course_path.'/scorm/'.$lp_path.'/'.$decoded)))
  2474. {
  2475. require_once('resourcelinker.inc.php');
  2476. $file = rl_get_resource_link_for_learnpath(api_get_course_id(),$this->get_id(),$item_id);
  2477. $tmp_array=explode("/",$file);
  2478. $document_name=$tmp_array[count($tmp_array)-1];
  2479. if(strpos($document_name,'_DELETED_')){
  2480. $file = 'blank.php?error=document_deleted';
  2481. }
  2482. }
  2483. else
  2484. {
  2485. $file = $course_path.'/scorm/'.$lp_path.'/'.$decoded;
  2486. }
  2487. }
  2488. }
  2489. //}else{
  2490. //prerequisites did not match
  2491. //$file = 'blank.php';
  2492. //}
  2493. //We want to use parameters if they were defined in the imsmanifest
  2494. if($file!='blank.php')
  2495. {
  2496. $file.= (strstr($file,'?')===false?'?':'').$lp_item_params;
  2497. }
  2498. }else{
  2499. $file = 'lp_content.php?type=dir';
  2500. }
  2501. break;
  2502. case 3:
  2503. if($this->debug>2){error_log('New LP - In learnpath::get_link() '.__LINE__.' - Item type: '.$lp_item_type,0);}
  2504. //formatting AICC HACP append URL
  2505. $aicc_append = '?aicc_sid='.urlencode(session_id()).'&aicc_url='.urlencode(api_get_path(WEB_CODE_PATH).'newscorm/aicc_hacp.php').'&';
  2506. if($lp_item_type!='dir'){
  2507. //Quite complex here:
  2508. //we want to make sure 'http://' (and similar) links can
  2509. //be loaded as is (withouth the Dokeos path in front) but
  2510. //some contents use this form: resource.htm?resource=http://blablabla
  2511. //which means we have to find a protocol at the path's start, otherwise
  2512. //it should not be considered as an external URL
  2513. if(preg_match('#^[a-zA-Z]{2,5}://#',$lp_item_path)!=0){
  2514. if($this->debug>2){error_log('New LP - In learnpath::get_link() '.__LINE__.' - Found match for protocol in '.$lp_item_path,0);}
  2515. //distant url, return as is
  2516. $file = $lp_item_path;
  2517. /*
  2518. if(stristr($file,'<servername>')!==false){
  2519. $file = str_replace('<servername>',$course_path.'/scorm/'.$lp_path.'/',$lp_item_path);
  2520. }
  2521. */
  2522. $file .= $aicc_append;
  2523. }else{
  2524. if($this->debug>2){error_log('New LP - In learnpath::get_link() '.__LINE__.' - No starting protocol in '.$lp_item_path,0);}
  2525. //prevent getting untranslatable urls
  2526. $lp_item_path = preg_replace('/%2F/','/',$lp_item_path);
  2527. $lp_item_path = preg_replace('/%3A/',':',$lp_item_path);
  2528. //prepare the path - lp_path might be unusable because it includes the "aicc" subdir name
  2529. $file = $course_path.'/scorm/'.$lp_path.'/'.$lp_item_path;
  2530. //TODO fix this for urls with protocol header
  2531. $file = str_replace('//','/',$file);
  2532. $file = str_replace(':/','://',$file);
  2533. $file .= $aicc_append;
  2534. }
  2535. }else{
  2536. $file = 'lp_content.php?type=dir';
  2537. }
  2538. break;
  2539. case 4:
  2540. break;
  2541. default:
  2542. break;
  2543. }
  2544. }
  2545. if($this->debug>2){error_log('New LP - In learnpath::get_link() - returning "'.$file.'" from get_link',0);}
  2546. return $file;
  2547. }
  2548. /**
  2549. * Gets the latest usable view or generate a new one
  2550. * @param integer Optional attempt number. If none given, takes the highest from the lp_view table
  2551. * @return integer DB lp_view id
  2552. */
  2553. function get_view($attempt_num=0)
  2554. {
  2555. if($this->debug>0){error_log('New LP - In learnpath::get_view()',0);}
  2556. $search = '';
  2557. //use $attempt_num to enable multi-views management (disabled so far)
  2558. if($attempt_num != 0 AND intval(strval($attempt_num)) == $attempt_num)
  2559. {
  2560. $search = 'AND view_count = '.$attempt_num;
  2561. }
  2562. //when missing $attempt_num, search for a unique lp_view record for this lp and user
  2563. $lp_view_table = Database::get_course_table('lp_view');
  2564. $sql = "SELECT id, view_count FROM $lp_view_table " .
  2565. "WHERE lp_id = ".$this->get_id()." " .
  2566. "AND user_id = ".$this->get_user_id()." " .
  2567. $search .
  2568. " ORDER BY view_count DESC";
  2569. $res = api_sql_query($sql, __FILE__, __LINE__);
  2570. if(Database::num_rows($res)>0)
  2571. {
  2572. $row = Database::fetch_array($res);
  2573. $this->lp_view_id = $row['id'];
  2574. }else{
  2575. //no database record, create one
  2576. $sql = "INSERT INTO $lp_view_table(lp_id,user_id,view_count)" .
  2577. "VALUES (".$this->get_id().",".$this->get_user_id().",1)";
  2578. $res = api_sql_query($sql, __FILE__, __LINE__);
  2579. $id = Database::get_last_insert_id();
  2580. $this->lp_view_id = $id;
  2581. }
  2582. return $this->lp_view_id;
  2583. }
  2584. /**
  2585. * Gets the current view id
  2586. * @return integer View ID (from lp_view)
  2587. */
  2588. function get_view_id()
  2589. {
  2590. if($this->debug>0){error_log('New LP - In learnpath::get_view_id()',0);}
  2591. if(!empty($this->lp_view_id))
  2592. {
  2593. return $this->lp_view_id;
  2594. }else{
  2595. return 0;
  2596. }
  2597. }
  2598. /**
  2599. * Gets the update queue
  2600. * @return array Array containing IDs of items to be updated by JavaScript
  2601. */
  2602. function get_update_queue()
  2603. {
  2604. if($this->debug>0){error_log('New LP - In learnpath::get_update_queue()',0);}
  2605. return $this->update_queue;
  2606. }
  2607. /**
  2608. * Gets the user ID
  2609. * @return integer User ID
  2610. */
  2611. function get_user_id()
  2612. {
  2613. if($this->debug>0){error_log('New LP - In learnpath::get_user_id()',0);}
  2614. if(!empty($this->user_id))
  2615. {
  2616. return $this->user_id;
  2617. }else{
  2618. return false;
  2619. }
  2620. }
  2621. /**
  2622. * Checks if any of the items has an audio element attached
  2623. * @return bool True or false
  2624. */
  2625. function has_audio() {
  2626. $has = false;
  2627. foreach ($this->items as $i=>$item) {
  2628. if (!empty($this->items[$i]->audio)) {
  2629. $has = true;
  2630. break;
  2631. }
  2632. }
  2633. return $has;
  2634. }
  2635. /**
  2636. * Logs a message into a file
  2637. * @param string Message to log
  2638. * @return boolean True on success, false on error or if msg empty
  2639. */
  2640. function log($msg)
  2641. {
  2642. if($this->debug>0){error_log('New LP - In learnpath::log()',0);}
  2643. //TODO
  2644. $this->error .= $msg."\n";
  2645. return true;
  2646. }
  2647. /**
  2648. * Moves an item up and down at its level
  2649. * @param integer Item to move up and down
  2650. * @param string Direction 'up' or 'down'
  2651. * @return integer New display order, or false on error
  2652. */
  2653. function move_item($id, $direction){
  2654. if($this->debug>0){error_log('New LP - In learnpath::move_item('.$id.','.$direction.')',0);}
  2655. if(empty($id) or empty($direction)){return false;}
  2656. $tbl_lp_item = Database::get_course_table('lp_item');
  2657. $sql_sel = "
  2658. SELECT *
  2659. FROM " . $tbl_lp_item . "
  2660. WHERE id = " . $id;
  2661. $res_sel = api_sql_query($sql_sel,__FILE__,__LINE__);
  2662. //check if elem exists
  2663. if(Database::num_rows($res_sel)<1){return false;}
  2664. //gather data
  2665. $row = Database::fetch_array($res_sel);
  2666. $previous = $row['previous_item_id'];
  2667. $next = $row['next_item_id'];
  2668. $display = $row['display_order'];
  2669. $parent = $row['parent_item_id'];
  2670. $lp = $row['lp_id'];
  2671. //update the item (switch with previous/next one)
  2672. switch($direction)
  2673. {
  2674. case 'up':
  2675. if($this->debug>2){error_log('Movement up detected',0);}
  2676. if($display <= 1){/*do nothing*/}
  2677. else{
  2678. $sql_sel2 = "SELECT *
  2679. FROM $tbl_lp_item
  2680. WHERE id = $previous";
  2681. if($this->debug>2){error_log('Selecting previous: '.$sql_sel2,0);}
  2682. $res_sel2 = api_sql_query($sql_sel2,__FILE__,__LINE__);
  2683. if(Database::num_rows($res_sel2)<1){$previous_previous = 0;}
  2684. //gather data
  2685. $row2 = Database::fetch_array($res_sel2);
  2686. $previous_previous = $row2['previous_item_id'];
  2687. //update previous_previous item (switch "next" with current)
  2688. if($previous_previous != 0)
  2689. {
  2690. $sql_upd2 = "UPDATE $tbl_lp_item SET next_item_id = $id WHERE id = $previous_previous";
  2691. if($this->debug>2){error_log($sql_upd2,0);}
  2692. $res_upd2 = api_sql_query($sql_upd2, __FILE__, __LINE__);
  2693. }
  2694. //update previous item (switch with current)
  2695. if($previous != 0)
  2696. {
  2697. $sql_upd2 = "UPDATE $tbl_lp_item SET next_item_id = $next, previous_item_id = $id, display_order = display_order +1 WHERE id = $previous";
  2698. if($this->debug>2){error_log($sql_upd2,0);}
  2699. $res_upd2 = api_sql_query($sql_upd2, __FILE__, __LINE__);
  2700. }
  2701. //update current item (switch with previous)
  2702. if($id != 0){
  2703. $sql_upd2 = "UPDATE $tbl_lp_item SET next_item_id = $previous, previous_item_id = $previous_previous, display_order = display_order-1 WHERE id = $id";
  2704. if($this->debug>2){error_log($sql_upd2,0);}
  2705. $res_upd2 = api_sql_query($sql_upd2, __FILE__, __LINE__);
  2706. }
  2707. //update next item (new previous item)
  2708. if($next != 0){
  2709. $sql_upd2 = "UPDATE $tbl_lp_item SET previous_item_id = $previous WHERE id = $next";
  2710. if($this->debug>2){error_log($sql_upd2,0);}
  2711. $res_upd2 = api_sql_query($sql_upd2, __FILE__, __LINE__);
  2712. }
  2713. $display = $display-1;
  2714. }
  2715. break;
  2716. case 'down':
  2717. if($this->debug>2){error_log('Movement down detected',0);}
  2718. if($next == 0){/*do nothing*/}
  2719. else{
  2720. $sql_sel2 = "SELECT * FROM $tbl_lp_item WHERE id = $next";
  2721. if($this->debug>2){error_log('Selecting next: '.$sql_sel2,0);}
  2722. $res_sel2 = api_sql_query($sql_sel2,__FILE__,__LINE__);
  2723. if(Database::num_rows($res_sel2)<1){$next_next = 0;}
  2724. //gather data
  2725. $row2 = Database::fetch_array($res_sel2);
  2726. $next_next = $row2['next_item_id'];
  2727. //update previous item (switch with current)
  2728. if($previous != 0)
  2729. {
  2730. $sql_upd2 = "UPDATE $tbl_lp_item SET next_item_id = $next WHERE id = $previous";
  2731. $res_upd2 = api_sql_query($sql_upd2, __FILE__, __LINE__);
  2732. }
  2733. //update current item (switch with previous)
  2734. if($id != 0)
  2735. {
  2736. $sql_upd2 = "UPDATE $tbl_lp_item SET previous_item_id = $next, next_item_id = $next_next, display_order = display_order+1 WHERE id = $id";
  2737. $res_upd2 = api_sql_query($sql_upd2, __FILE__, __LINE__);
  2738. }
  2739. //update next item (new previous item)
  2740. if($next != 0)
  2741. {
  2742. $sql_upd2 = "UPDATE $tbl_lp_item SET previous_item_id = $previous, next_item_id = $id, display_order = display_order-1 WHERE id = $next";
  2743. $res_upd2 = api_sql_query($sql_upd2, __FILE__, __LINE__);
  2744. }
  2745. //update next_next item (switch "previous" with current)
  2746. if($next_next != 0)
  2747. {
  2748. $sql_upd2 = "UPDATE $tbl_lp_item SET previous_item_id = $id WHERE id = $next_next";
  2749. $res_upd2 = api_sql_query($sql_upd2, __FILE__, __LINE__);
  2750. }
  2751. $display = $display+1;
  2752. }
  2753. break;
  2754. default:
  2755. return false;
  2756. }
  2757. return $display;
  2758. }
  2759. /**
  2760. * Move a learnpath up (display_order)
  2761. * @param integer Learnpath ID
  2762. */
  2763. function move_up($lp_id)
  2764. {
  2765. $lp_table = Database::get_course_table(TABLE_LP_MAIN);
  2766. $sql = "SELECT * FROM $lp_table ORDER BY display_order";
  2767. $res = api_sql_query($sql, __FILE__, __LINE__);
  2768. if($res === false) return false;
  2769. $lps = array();
  2770. $lp_order = array();
  2771. $num = Database::num_rows($res);
  2772. //first check the order is correct, globally (might be wrong because
  2773. //of versions < 1.8.4)
  2774. if($num>0)
  2775. {
  2776. $i = 1;
  2777. while($row = Database::fetch_array($res))
  2778. {
  2779. if($row['display_order'] != $i)
  2780. { //if we find a gap in the order, we need to fix it
  2781. $need_fix = true;
  2782. $sql_u = "UPDATE $lp_table SET display_order = $i WHERE id = ".$row['id'];
  2783. $res_u = api_sql_query($sql_u, __FILE__, __LINE__);
  2784. }
  2785. $row['display_order'] = $i;
  2786. $lps[$row['id']] = $row;
  2787. $lp_order[$i] = $row['id'];
  2788. $i++;
  2789. }
  2790. }
  2791. if($num>1) //if there's only one element, no need to sort
  2792. {
  2793. $order = $lps[$lp_id]['display_order'];
  2794. if($order>1) //if it's the first element, no need to move up
  2795. {
  2796. $sql_u1 = "UPDATE $lp_table SET display_order = $order WHERE id = ".$lp_order[$order-1];
  2797. $res_u1 = api_sql_query($sql_u1, __FILE__, __LINE__);
  2798. $sql_u2 = "UPDATE $lp_table SET display_order = ".($order-1)." WHERE id = ".$lp_id;
  2799. $res_u2 = api_sql_query($sql_u2, __FILE__, __LINE__);
  2800. }
  2801. }
  2802. }
  2803. /**
  2804. * Move a learnpath down (display_order)
  2805. * @param integer Learnpath ID
  2806. */
  2807. function move_down($lp_id)
  2808. {
  2809. $lp_table = Database::get_course_table(TABLE_LP_MAIN);
  2810. $sql = "SELECT * FROM $lp_table ORDER BY display_order";
  2811. $res = api_sql_query($sql, __FILE__, __LINE__);
  2812. if($res === false) return false;
  2813. $lps = array();
  2814. $lp_order = array();
  2815. $num = Database::num_rows($res);
  2816. $max = 0;
  2817. //first check the order is correct, globally (might be wrong because
  2818. //of versions < 1.8.4)
  2819. if($num>0)
  2820. {
  2821. $i = 1;
  2822. while($row = Database::fetch_array($res))
  2823. {
  2824. $max = $i;
  2825. if($row['display_order'] != $i)
  2826. { //if we find a gap in the order, we need to fix it
  2827. $need_fix = true;
  2828. $sql_u = "UPDATE $lp_table SET display_order = $i WHERE id = ".$row['id'];
  2829. $res_u = api_sql_query($sql_u, __FILE__, __LINE__);
  2830. }
  2831. $row['display_order'] = $i;
  2832. $lps[$row['id']] = $row;
  2833. $lp_order[$i] = $row['id'];
  2834. $i++;
  2835. }
  2836. }
  2837. if($num>1) //if there's only one element, no need to sort
  2838. {
  2839. $order = $lps[$lp_id]['display_order'];
  2840. if($order<$max) //if it's the first element, no need to move up
  2841. {
  2842. $sql_u1 = "UPDATE $lp_table SET display_order = $order WHERE id = ".$lp_order[$order+1];
  2843. $res_u1 = api_sql_query($sql_u1, __FILE__, __LINE__);
  2844. $sql_u2 = "UPDATE $lp_table SET display_order = ".($order+1)." WHERE id = ".$lp_id;
  2845. $res_u2 = api_sql_query($sql_u2, __FILE__, __LINE__);
  2846. }
  2847. }
  2848. }
  2849. /**
  2850. * Updates learnpath attributes to point to the next element
  2851. * The last part is similar to set_current_item but processing the other way around
  2852. */
  2853. function next()
  2854. {
  2855. if($this->debug>0){error_log('New LP - In learnpath::next()',0);}
  2856. $this->last = $this->get_current_item_id();
  2857. $this->items[$this->last]->save(false,$this->prerequisites_match($this->last));
  2858. $this->autocomplete_parents($this->last);
  2859. $new_index = $this->get_next_index();
  2860. if($this->debug>2){error_log('New LP - New index: '.$new_index,0);}
  2861. $this->index = $new_index;
  2862. if($this->debug>2){error_log('New LP - Now having orderedlist['.$new_index.'] = '. $this->ordered_items[$new_index],0);}
  2863. $this->current = $this->ordered_items[$new_index];
  2864. if($this->debug>2){error_log('New LP - new item id is '.$this->current.'-'.$this->get_current_item_id(),0);}
  2865. }
  2866. /**
  2867. * Open a resource = initialise all local variables relative to this resource. Depending on the child
  2868. * class, this might be redefined to allow several behaviours depending on the document type.
  2869. * @param integer Resource ID
  2870. * @return boolean True on success, false otherwise
  2871. */
  2872. function open($id)
  2873. {
  2874. if($this->debug>0){error_log('New LP - In learnpath::open()',0);}
  2875. //TODO
  2876. //set the current resource attribute to this resource
  2877. //switch on element type (redefine in child class?)
  2878. //set status for this item to "opened"
  2879. //start timer
  2880. //initialise score
  2881. $this->index = 0; //or = the last item seen (see $this->last)
  2882. }
  2883. /**
  2884. * Check that all prerequisites are fulfilled. Returns true and an empty string on succes, returns false
  2885. * and the prerequisite string on error.
  2886. * This function is based on the rules for aicc_script language as described in the SCORM 1.2 CAM documentation page 108.
  2887. * @param integer Optional item ID. If none given, uses the current open item.
  2888. * @return boolean True if prerequisites are matched, false otherwise
  2889. * @return string Empty string if true returned, prerequisites string otherwise.
  2890. */
  2891. function prerequisites_match($item = null)
  2892. {
  2893. if($this->debug>0){error_log('New LP - In learnpath::prerequisites_match()',0);}
  2894. if(empty($item)){$item = $this->current;}
  2895. if(is_object($this->items[$item]))
  2896. {
  2897. $prereq_string = $this->items[$item]->get_prereq_string();
  2898. if(empty($prereq_string)){return true;}
  2899. //clean spaces
  2900. $prereq_string = str_replace(' ','',$prereq_string);
  2901. if($this->debug>0){error_log('Found prereq_string: '.$prereq_string,0);}
  2902. //now send to the parse_prereq() function that will check this component's prerequisites
  2903. $result = $this->items[$item]->parse_prereq($prereq_string,$this->items,$this->refs_list,$this->get_user_id());
  2904. if($result === false)
  2905. {
  2906. $this->set_error_msg($this->items[$item]->prereq_alert);
  2907. }
  2908. }else{
  2909. $result = true;
  2910. if($this->debug>1){error_log('New LP - $this->items['.$item.'] was not an object',0);}
  2911. }
  2912. if($this->debug>1){error_log('New LP - End of prerequisites_match(). Error message is now '.$this->error,0);}
  2913. return $result;
  2914. }
  2915. /**
  2916. * Updates learnpath attributes to point to the previous element
  2917. * The last part is similar to set_current_item but processing the other way around
  2918. */
  2919. function previous()
  2920. {
  2921. if($this->debug>0){error_log('New LP - In learnpath::previous()',0);}
  2922. $this->last = $this->get_current_item_id();
  2923. $this->items[$this->last]->save(false,$this->prerequisites_match($this->last));
  2924. $this->autocomplete_parents($this->last);
  2925. $new_index = $this->get_previous_index();
  2926. $this->index = $new_index;
  2927. $this->current = $this->ordered_items[$new_index];
  2928. }
  2929. /**
  2930. * Publishes a learnpath. This basically means show or hide the learnpath
  2931. * to normal users.
  2932. * Can be used as abstract
  2933. * @param integer Learnpath ID
  2934. * @param string New visibility
  2935. */
  2936. function toggle_visibility($lp_id,$set_visibility=1)
  2937. {
  2938. //if($this->debug>0){error_log('New LP - In learnpath::toggle_visibility()',0);}
  2939. $action = 'visible';
  2940. if($set_visibility != 1)
  2941. {
  2942. $action = 'invisible';
  2943. }
  2944. return api_item_property_update(api_get_course_info(),TOOL_LEARNPATH,$lp_id,$action,api_get_user_id());
  2945. }
  2946. /**
  2947. * Publishes a learnpath. This basically means show or hide the learnpath
  2948. * on the course homepage
  2949. * Can be used as abstract
  2950. * @param integer Learnpath ID
  2951. * @param string New visibility
  2952. */
  2953. function toggle_publish($lp_id,$set_visibility='v')
  2954. {
  2955. //if($this->debug>0){error_log('New LP - In learnpath::toggle_publish()',0);}
  2956. $tbl_lp = Database::get_course_table('lp');
  2957. $sql="SELECT * FROM $tbl_lp where id=$lp_id";
  2958. $result=api_sql_query($sql,__FILE__,__LINE__);
  2959. $row=Database::fetch_array($result);
  2960. $name=domesticate($row['name']);
  2961. if($set_visibility == 'i') {
  2962. $s=$name." ".get_lang('_no_published');
  2963. $dialogBox=$s;
  2964. $v=0;
  2965. }
  2966. if($set_visibility == 'v')
  2967. {
  2968. $s=$name." ".get_lang('_published');
  2969. $dialogBox=$s;
  2970. $v=1;
  2971. }
  2972. $tbl_tool = Database::get_course_table(TABLE_TOOL_LIST);
  2973. $link = 'newscorm/lp_controller.php?action=view&lp_id='.$lp_id;
  2974. $sql="SELECT * FROM $tbl_tool where name='$name' and image='scormbuilder.gif' and link LIKE '$link%'";
  2975. $result=api_sql_query($sql,__FILE__,__LINE__);
  2976. $num=Database::num_rows($result);
  2977. $row2=Database::fetch_array($result);
  2978. //if($this->debug>2){error_log('New LP - '.$sql.' - '.$num,0);}
  2979. if(($set_visibility == 'i') && ($num>0))
  2980. {
  2981. $sql ="DELETE FROM $tbl_tool WHERE (name='$name' and image='scormbuilder.gif' and link LIKE '$link%')";
  2982. }
  2983. elseif(($set_visibility == 'v') && ($num==0))
  2984. {
  2985. $sql ="INSERT INTO $tbl_tool (name, link, image, visibility, admin, address, added_tool) VALUES ('$name','newscorm/lp_controller.php?action=view&lp_id=$lp_id','scormbuilder.gif','$v','0','pastillegris.gif',0)";
  2986. }
  2987. else
  2988. {
  2989. //parameter and database incompatible, do nothing
  2990. }
  2991. $result=api_sql_query($sql,__FILE__,__LINE__);
  2992. //if($this->debug>2){error_log('New LP - Leaving learnpath::toggle_visibility: '.$sql,0);}
  2993. }
  2994. /**
  2995. * Restart the whole learnpath. Return the URL of the first element.
  2996. * Make sure the results are saved with anoter method. This method should probably be
  2997. * redefined in children classes.
  2998. * To use a similar method statically, use the create_new_attempt() method
  2999. * @return string URL to load in the viewer
  3000. */
  3001. function restart()
  3002. {
  3003. if($this->debug>0){error_log('New LP - In learnpath::restart()',0);}
  3004. //TODO
  3005. //call autosave method to save the current progress
  3006. //$this->index = 0;
  3007. $lp_view_table = Database::get_course_table('lp_view');
  3008. $sql = "INSERT INTO $lp_view_table (lp_id, user_id, view_count) " .
  3009. "VALUES (".$this->lp_id.",".$this->get_user_id().",".($this->attempt+1).")";
  3010. if($this->debug>2){error_log('New LP - Inserting new lp_view for restart: '.$sql,0);}
  3011. $res = api_sql_query($sql, __FILE__, __LINE__);
  3012. if($view_id = Database::get_last_insert_id($res))
  3013. {
  3014. $this->lp_view_id = $view_id;
  3015. $this->attempt = $this->attempt+1;
  3016. }else{
  3017. $this->error = 'Could not insert into item_view table...';
  3018. return false;
  3019. }
  3020. $this->autocomplete_parents($this->current);
  3021. foreach($this->items as $index=>$dummy){
  3022. $this->items[$index]->restart();
  3023. $this->items[$index]->set_lp_view($this->lp_view_id);
  3024. }
  3025. $this->first();
  3026. return true;
  3027. }
  3028. /**
  3029. * Saves the current item
  3030. * @return boolean
  3031. */
  3032. function save_current(){
  3033. if($this->debug>0){error_log('New LP - In learnpath::save_current()',0);}
  3034. //TODO do a better check on the index pointing to the right item (it is supposed to be working
  3035. // on $ordered_items[] but not sure it's always safe to use with $items[])
  3036. if($this->debug>2){error_log('New LP - save_current() saving item '.$this->current,0);}
  3037. if($this->debug>2){error_log(''.print_r($this->items,true),0);}
  3038. if(is_object($this->items[$this->current])){
  3039. //$res = $this->items[$this->current]->save(false);
  3040. $res = $this->items[$this->current]->save(false,$this->prerequisites_match($this->current));
  3041. $this->autocomplete_parents($this->current);
  3042. $status = $this->items[$this->current]->get_status();
  3043. $this->append_message('new_item_status: '.$status);
  3044. $this->update_queue[$this->current] = $status;
  3045. return $res;
  3046. }
  3047. return false;
  3048. }
  3049. /**
  3050. * Saves the given item
  3051. * @param integer Item ID. Optional (will take from $_REQUEST if null)
  3052. * @param boolean Save from url params (true) or from current attributes (false). Optional. Defaults to true
  3053. * @return boolean
  3054. */
  3055. function save_item($item_id=null,$from_outside=true){
  3056. if($this->debug>0){error_log('New LP - In learnpath::save_item('.$item_id.','.$from_outside.')',0);}
  3057. //TODO do a better check on the index pointing to the right item (it is supposed to be working
  3058. // on $ordered_items[] but not sure it's always safe to use with $items[])
  3059. if(empty($item_id)){
  3060. $item_id = $this->escape_string($_REQUEST['id']);
  3061. }
  3062. if(empty($item_id))
  3063. {
  3064. $item_id = $this->get_current_item_id();
  3065. }
  3066. if($this->debug>2){error_log('New LP - save_current() saving item '.$item_id,0);}
  3067. if(is_object($this->items[$item_id])){
  3068. $res = $this->items[$item_id]->save($from_outside,$this->prerequisites_match($item_id));
  3069. //$res = $this->items[$item_id]->save($from_outside);
  3070. $this->autocomplete_parents($item_id);
  3071. $status = $this->items[$item_id]->get_status();
  3072. $this->append_message('new_item_status: '.$status);
  3073. $this->update_queue[$item_id] = $status;
  3074. return $res;
  3075. }
  3076. return false;
  3077. }
  3078. /**
  3079. * Saves the last item seen's ID only in case
  3080. */
  3081. function save_last(){
  3082. if($this->debug>0){error_log('New LP - In learnpath::save_last()',0);}
  3083. $table = Database::get_course_table('lp_view');
  3084. if(isset($this->current)){
  3085. if($this->debug>2){error_log('New LP - Saving current item ('.$this->current.') for later review',0);}
  3086. $sql = "UPDATE $table SET last_item = ".$this->get_current_item_id()." " .
  3087. "WHERE lp_id = ".$this->get_id()." AND user_id = ".$this->get_user_id();
  3088. if($this->debug>2){error_log('New LP - Saving last item seen : '.$sql,0);}
  3089. $res = api_sql_query($sql,__FILE__,__LINE__);
  3090. }
  3091. //save progress
  3092. list($progress,$text) = $this->get_progress_bar_text('%');
  3093. if($progress>=0 AND $progress<=100){
  3094. $progress= (int)$progress;
  3095. $sql = "UPDATE $table SET progress = $progress " .
  3096. "WHERE lp_id = ".$this->get_id()." AND " .
  3097. "user_id = ".$this->get_user_id();
  3098. $res = api_sql_query($sql,__FILE__, __LINE__); //ignore errors as some tables might not have the progress field just yet
  3099. $this->progress_db = $progress;
  3100. }
  3101. }
  3102. /**
  3103. * Sets the current item ID (checks if valid and authorized first)
  3104. * @param integer New item ID. If not given or not authorized, defaults to current
  3105. */
  3106. function set_current_item($item_id=null)
  3107. {
  3108. if($this->debug>0){error_log('New LP - In learnpath::set_current_item('.$item_id.')',0);}
  3109. if(empty($item_id)){
  3110. if($this->debug>2){error_log('New LP - No new current item given, ignore...',0);}
  3111. //do nothing
  3112. }else{
  3113. if($this->debug>2){error_log('New LP - New current item given is '.$item_id.'...',0);}
  3114. $item_id = $this->escape_string($item_id);
  3115. //TODO check in database here
  3116. $this->last = $this->current;
  3117. $this->current = $item_id;
  3118. //TODO update $this->index as well
  3119. foreach($this->ordered_items as $index => $item)
  3120. {
  3121. if($item == $this->current)
  3122. {
  3123. $this->index = $index;
  3124. break;
  3125. }
  3126. }
  3127. if($this->debug>2){error_log('New LP - set_current_item('.$item_id.') done. Index is now : '.$this->index,0);}
  3128. }
  3129. }
  3130. /**
  3131. * Sets the encoding
  3132. * @param string New encoding
  3133. */
  3134. function set_encoding($enc='ISO-8859-1'){
  3135. if($this->debug>0){error_log('New LP - In learnpath::set_encoding()',0);}
  3136. $enc = strtoupper($enc);
  3137. $encodings = array('UTF-8','ISO-8859-1','ISO-8859-15','cp1251','cp1252','KOI8-R','BIG5','GB2312','Shift_JIS','EUC-JP','');
  3138. if(in_array($enc,$encodings)){
  3139. $lp = $this->get_id();
  3140. if($lp!=0){
  3141. $tbl_lp = Database::get_course_table('lp');
  3142. $sql = "UPDATE $tbl_lp SET default_encoding = '$enc' WHERE id = ".$lp;
  3143. $res = api_sql_query($sql, __FILE__, __LINE__);
  3144. return $res;
  3145. }
  3146. }
  3147. return false;
  3148. }
  3149. /**
  3150. * Sets the JS lib setting in the database directly.
  3151. * This is the JavaScript library file this lp needs to load on startup
  3152. * @param string Proximity setting
  3153. */
  3154. function set_jslib($lib=''){
  3155. if($this->debug>0){error_log('New LP - In learnpath::set_jslib()',0);}
  3156. $lp = $this->get_id();
  3157. if($lp!=0){
  3158. $tbl_lp = Database::get_course_table('lp');
  3159. $sql = "UPDATE $tbl_lp SET js_lib = '$lib' WHERE id = ".$lp;
  3160. $res = api_sql_query($sql, __FILE__, __LINE__);
  3161. return $res;
  3162. }else{
  3163. return false;
  3164. }
  3165. }
  3166. /**
  3167. * Sets the name of the LP maker (publisher) (and save)
  3168. * @param string Optional string giving the new content_maker of this learnpath
  3169. */
  3170. function set_maker($name=''){
  3171. if($this->debug>0){error_log('New LP - In learnpath::set_maker()',0);}
  3172. if(empty($name))return false;
  3173. $this->maker = $this->escape_string($name);
  3174. $lp_table = Database::get_course_table('lp');
  3175. $lp_id = $this->get_id();
  3176. $sql = "UPDATE $lp_table SET content_maker = '".$this->maker."' WHERE id = '$lp_id'";
  3177. if($this->debug>2){error_log('New LP - lp updated with new content_maker : '.$this->maker,0);}
  3178. //$res = Database::query($sql);
  3179. $res = api_sql_query($sql, __FILE__, __LINE__);
  3180. return true;
  3181. }
  3182. /**
  3183. * Sets the name of the current learnpath (and save)
  3184. * @param string Optional string giving the new name of this learnpath
  3185. */
  3186. function set_name($name=''){
  3187. if($this->debug>0){error_log('New LP - In learnpath::set_name()',0);}
  3188. if(empty($name))return false;
  3189. $this->name = $this->escape_string($name);
  3190. $lp_table = Database::get_course_table('lp');
  3191. $lp_id = $this->get_id();
  3192. $sql = "UPDATE $lp_table SET name = '".$this->name."' WHERE id = '$lp_id'";
  3193. if($this->debug>2){error_log('New LP - lp updated with new name : '.$this->name,0);}
  3194. //$res = Database::query($sql);
  3195. $res = api_sql_query($sql, __FILE__, __LINE__);
  3196. // if the lp is visible on the homepage, change his name there
  3197. if(mysql_affected_rows())
  3198. {
  3199. $table = Database :: get_course_table(TABLE_TOOL_LIST);
  3200. $sql = 'UPDATE '.$table.' SET
  3201. name = "'.$this->name.'"
  3202. WHERE link = "newscorm/lp_controller.php?action=view&lp_id='.$lp_id.'"';
  3203. api_sql_query($sql, __FILE__, __LINE__);
  3204. }
  3205. return true;
  3206. }
  3207. /**
  3208. * Set index specified prefix terms for all items in this path
  3209. * @param string Comma-separated list of terms
  3210. * @param char Xapian term prefix
  3211. * @return boolean False on error, true otherwise
  3212. */
  3213. function set_terms_by_prefix($terms_string, $prefix) {
  3214. if (api_get_setting('search_enabled') !== 'true')
  3215. return FALSE;
  3216. $terms_string = trim($terms_string);
  3217. $terms = explode(',', $terms_string);
  3218. array_walk($terms, 'trim_value');
  3219. $stored_terms = $this->get_common_index_terms_by_prefix($prefix);
  3220. //var_dump($stored_terms);
  3221. //var_dump($terms);
  3222. // don't do anything if no change, verify only at DB, not the search engine
  3223. if ( (count(array_diff($terms, $stored_terms))==0) && (count(array_diff($stored_terms, $terms))==0) )
  3224. return FALSE;
  3225. require_once('xapian.php'); //TODO try catch every xapian use or make wrappers on api
  3226. require_once(api_get_path(LIBRARY_PATH).'search/DokeosIndexer.class.php');
  3227. require_once(api_get_path(LIBRARY_PATH).'search/xapian/XapianQuery.php');
  3228. require_once(api_get_path(LIBRARY_PATH).'search/IndexableChunk.class.php');
  3229. $items_table = Database::get_course_table('lp_item');
  3230. //TODO: make query secure agains XSS : use member attr instead of post var
  3231. $lp_id = $_POST['lp_id'];
  3232. $sql = "SELECT * FROM $items_table WHERE lp_id = $lp_id";
  3233. $result = api_sql_query($sql);
  3234. $di = new DokeosIndexer();
  3235. while($lp_item = Database::fetch_array($result))
  3236. {
  3237. // get search_did
  3238. $tbl_se_ref = Database::get_main_table(TABLE_MAIN_SEARCH_ENGINE_REF);
  3239. $sql = 'SELECT * FROM %s WHERE course_code=\'%s\' AND tool_id=\'%s\' AND ref_id_high_level=%s AND ref_id_second_level=%d LIMIT 1';
  3240. $sql = sprintf($sql, $tbl_se_ref, $this->cc, TOOL_LEARNPATH, $lp_id, $lp_item['id']);
  3241. $res = api_sql_query($sql, __FILE__, __LINE__);
  3242. $se_ref = Database::fetch_array($res);
  3243. // compare terms
  3244. $doc = $di->get_document($se_ref['search_did']);
  3245. $xapian_terms = xapian_get_doc_terms($doc, $prefix);
  3246. //var_dump($xapian_terms);
  3247. $xterms = array();
  3248. foreach ($xapian_terms as $xapian_term) $xterms[] = substr($xapian_term['name'],1);
  3249. $dterms = $terms;
  3250. //var_dump($xterms);
  3251. //var_dump($dterms);
  3252. $missing_terms = array_diff($dterms, $xterms);
  3253. $deprecated_terms = array_diff($xterms, $dterms);
  3254. // save it to search engine
  3255. foreach ($missing_terms as $term)
  3256. {
  3257. $doc->add_term($prefix. $term, 1);
  3258. }
  3259. foreach ($deprecated_terms as $term)
  3260. {
  3261. $doc->remove_term($prefix.$term);
  3262. }
  3263. $di->getDb()->replace_document((int)$se_ref['search_did'], $doc);
  3264. $di->getDb()->flush();
  3265. }
  3266. return true;
  3267. }
  3268. /**
  3269. * Sets the theme of the LP (local/remote) (and save)
  3270. * @param string Optional string giving the new theme of this learnpath
  3271. * @return bool returns true if theme name is not empty
  3272. */
  3273. function set_theme($name=''){
  3274. if($this->debug>0){error_log('New LP - In learnpath::set_theme()',0);}
  3275. $this->theme = $this->escape_string($name);
  3276. $lp_table = Database::get_course_table('lp');
  3277. $lp_id = $this->get_id();
  3278. $sql = "UPDATE $lp_table SET theme = '".$this->theme."' WHERE id = '$lp_id'";
  3279. if($this->debug>2){error_log('New LP - lp updated with new theme : '.$this->theme,0);}
  3280. //$res = Database::query($sql);
  3281. $res = api_sql_query($sql, __FILE__, __LINE__);
  3282. return true;
  3283. }
  3284. /**
  3285. * Sets the image of an LP (and save)
  3286. * @param string Optional string giving the new image of this learnpath
  3287. * @return bool returns true if theme name is not empty
  3288. */
  3289. function set_preview_image($name=''){
  3290. if($this->debug>0){error_log('New LP - In learnpath::set_preview_image()',0);}
  3291. $this->preview_image = $this->escape_string($name);
  3292. $lp_table = Database::get_course_table('lp');
  3293. $lp_id = $this->get_id();
  3294. $sql = "UPDATE $lp_table SET preview_image = '".$this->preview_image."' WHERE id = '$lp_id'";
  3295. if($this->debug>2){error_log('New LP - lp updated with new preview image : '.$this->preview_image,0);}
  3296. $res = api_sql_query($sql, __FILE__, __LINE__);
  3297. return true;
  3298. }
  3299. /**
  3300. * Sets the author of a LP (and save)
  3301. * @param string Optional string giving the new author of this learnpath
  3302. * @return bool returns true if author's name is not empty
  3303. */
  3304. function set_author($name=''){
  3305. if($this->debug>0){error_log('New LP - In learnpath::set_author()',0);}
  3306. $this->author = $this->escape_string($name);
  3307. $lp_table = Database::get_course_table('lp');
  3308. $lp_id = $this->get_id();
  3309. $sql = "UPDATE $lp_table SET author = '".$this->author."' WHERE id = '$lp_id'";
  3310. if($this->debug>2){error_log('New LP - lp updated with new preview author : '.$this->author,0);}
  3311. $res = api_sql_query($sql, __FILE__, __LINE__);
  3312. return true;
  3313. }
  3314. /**
  3315. * Sets the location/proximity of the LP (local/remote) (and save)
  3316. * @param string Optional string giving the new location of this learnpath
  3317. */
  3318. function set_proximity($name=''){
  3319. if($this->debug>0){error_log('New LP - In learnpath::set_proximity()',0);}
  3320. if(empty($name))return false;
  3321. $this->proximity = $this->escape_string($name);
  3322. $lp_table = Database::get_course_table('lp');
  3323. $lp_id = $this->get_id();
  3324. $sql = "UPDATE $lp_table SET content_local = '".$this->proximity."' WHERE id = '$lp_id'";
  3325. if($this->debug>2){error_log('New LP - lp updated with new proximity : '.$this->proximity,0);}
  3326. //$res = Database::query($sql);
  3327. $res = api_sql_query($sql, __FILE__, __LINE__);
  3328. return true;
  3329. }
  3330. /**
  3331. * Sets the previous item ID to a given ID. Generally, this should be set to the previous 'current' item
  3332. * @param integer DB ID of the item
  3333. */
  3334. function set_previous_item($id)
  3335. {
  3336. if($this->debug>0){error_log('New LP - In learnpath::set_previous_item()',0);}
  3337. $this->last = $id;
  3338. }
  3339. /**
  3340. * Sets the object's error message
  3341. * @param string Error message. If empty, reinits the error string
  3342. * @return void
  3343. */
  3344. function set_error_msg($error='')
  3345. {
  3346. if($this->debug>0){error_log('New LP - In learnpath::set_error_msg()',0);}
  3347. if(empty($error)){
  3348. $this->error = '';
  3349. }else{
  3350. $this->error .= $error;
  3351. }
  3352. }
  3353. /**
  3354. * Launches the current item if not 'sco' (starts timer and make sure there is a record ready in the DB)
  3355. *
  3356. */
  3357. function start_current_item($allow_new_attempt=false){
  3358. if($this->debug>0){error_log('New LP - In learnpath::start_current_item()',0);}
  3359. if($this->current != 0 AND
  3360. is_object($this->items[$this->current]))
  3361. {
  3362. $type = $this->get_type();
  3363. $item_type = $this->items[$this->current]->get_type();
  3364. if(
  3365. ($type == 2 && $item_type!='sco')
  3366. OR
  3367. ($type == 3 && $item_type!='au')
  3368. OR
  3369. ($type == 1 && $item_type!=TOOL_QUIZ && $item_type!=TOOL_HOTPOTATOES)
  3370. )
  3371. {
  3372. $this->items[$this->current]->open($allow_new_attempt);
  3373. $this->autocomplete_parents($this->current);
  3374. $prereq_check = $this->prerequisites_match($this->current);
  3375. $this->items[$this->current]->save(false,$prereq_check);
  3376. //$this->update_queue[$this->last] = $this->items[$this->last]->get_status();
  3377. }else{
  3378. //if sco, then it is supposed to have been updated by some other call
  3379. }
  3380. $this->items[$this->current]->restart();
  3381. }
  3382. if($this->debug>0){error_log('New LP - End of learnpath::start_current_item()',0);}
  3383. return true;
  3384. }
  3385. /**
  3386. * Stops the processing and counters for the old item (as held in $this->last)
  3387. * @param
  3388. */
  3389. function stop_previous_item(){
  3390. if($this->debug>0){error_log('New LP - In learnpath::stop_previous_item()',0);}
  3391. if($this->last != 0 AND $this->last!=$this->current AND is_object($this->items[$this->last]))
  3392. {
  3393. if($this->debug>2){error_log('New LP - In learnpath::stop_previous_item() - '.$this->last.' is object',0);}
  3394. switch($this->get_type()){
  3395. case '3':
  3396. if($this->items[$this->last]->get_type()!='au')
  3397. {
  3398. if($this->debug>2){error_log('New LP - In learnpath::stop_previous_item() - '.$this->last.' in lp_type 3 is <> au',0);}
  3399. $this->items[$this->last]->close();
  3400. //$this->autocomplete_parents($this->last);
  3401. //$this->update_queue[$this->last] = $this->items[$this->last]->get_status();
  3402. }else{
  3403. if($this->debug>2){error_log('New LP - In learnpath::stop_previous_item() - Item is an AU, saving is managed by AICC signals',0);}
  3404. }
  3405. case '2':
  3406. if($this->items[$this->last]->get_type()!='sco')
  3407. {
  3408. if($this->debug>2){error_log('New LP - In learnpath::stop_previous_item() - '.$this->last.' in lp_type 2 is <> sco',0);}
  3409. $this->items[$this->last]->close();
  3410. //$this->autocomplete_parents($this->last);
  3411. //$this->update_queue[$this->last] = $this->items[$this->last]->get_status();
  3412. }else{
  3413. if($this->debug>2){error_log('New LP - In learnpath::stop_previous_item() - Item is a SCO, saving is managed by SCO signals',0);}
  3414. }
  3415. break;
  3416. case '1':
  3417. default:
  3418. if($this->debug>2){error_log('New LP - In learnpath::stop_previous_item() - '.$this->last.' in lp_type 1 is asset',0);}
  3419. $this->items[$this->last]->close();
  3420. break;
  3421. }
  3422. }else{
  3423. if($this->debug>2){error_log('New LP - In learnpath::stop_previous_item() - No previous element found, ignoring...',0);}
  3424. return false;
  3425. }
  3426. return true;
  3427. }
  3428. /**
  3429. * Updates the default view mode from fullscreen to embedded and inversely
  3430. * @return string The current default view mode ('fullscreen' or 'embedded')
  3431. */
  3432. function update_default_view_mode()
  3433. {
  3434. if($this->debug>0){error_log('New LP - In learnpath::update_default_view_mode()',0);}
  3435. $lp_table = Database::get_course_table('lp');
  3436. $sql = "SELECT * FROM $lp_table WHERE id = ".$this->get_id();
  3437. $res = api_sql_query($sql, __FILE__, __LINE__);
  3438. if(Database::num_rows($res)>0){
  3439. $row = Database::fetch_array($res);
  3440. $view_mode = $row['default_view_mod'];
  3441. if($view_mode == 'fullscreen'){
  3442. $view_mode = 'embedded';
  3443. }elseif($view_mode == 'embedded'){
  3444. $view_mode = 'fullscreen';
  3445. }
  3446. $sql = "UPDATE $lp_table SET default_view_mod = '$view_mode' WHERE id = ".$this->get_id();
  3447. $res = api_sql_query($sql, __FILE__, __LINE__);
  3448. $this->mode = $view_mode;
  3449. return $view_mode;
  3450. }else{
  3451. if($this->debug>2){error_log('New LP - Problem in update_default_view() - could not find LP '.$this->get_id().' in DB',0);}
  3452. }
  3453. return -1;
  3454. }
  3455. /**
  3456. * Updates the default behaviour about auto-commiting SCORM updates
  3457. * @return boolean True if auto-commit has been set to 'on', false otherwise
  3458. */
  3459. function update_default_scorm_commit(){
  3460. if($this->debug>0){error_log('New LP - In learnpath::update_default_scorm_commit()',0);}
  3461. $lp_table = Database::get_course_table('lp');
  3462. $sql = "SELECT * FROM $lp_table WHERE id = ".$this->get_id();
  3463. $res = api_sql_query($sql, __FILE__, __LINE__);
  3464. if(Database::num_rows($res)>0){
  3465. $row = Database::fetch_array($res);
  3466. $force = $row['force_commit'];
  3467. if($force == 1){
  3468. $force = 0;
  3469. $force_return = false;
  3470. }elseif($force == 0){
  3471. $force = 1;
  3472. $force_return = true;
  3473. }
  3474. $sql = "UPDATE $lp_table SET force_commit = $force WHERE id = ".$this->get_id();
  3475. $res = api_sql_query($sql, __FILE__, __LINE__);
  3476. $this->force_commit = $force_return;
  3477. return $force_return;
  3478. }else{
  3479. if($this->debug>2){error_log('New LP - Problem in update_default_scorm_commit() - could not find LP '.$this->get_id().' in DB',0);}
  3480. }
  3481. return -1;
  3482. }
  3483. /**
  3484. * Updates the order of learning paths (goes through all of them by order and fills the gaps)
  3485. * @return bool True on success, false on failure
  3486. */
  3487. function update_display_order()
  3488. {
  3489. $lp_table = Database::get_course_table(TABLE_LP_MAIN);
  3490. $sql = "SELECT * FROM $lp_table ORDER BY display_order";
  3491. $res = api_sql_query($sql, __FILE__, __LINE__);
  3492. if($res === false) return false;
  3493. $lps = array();
  3494. $lp_order = array();
  3495. $num = Database::num_rows($res);
  3496. //first check the order is correct, globally (might be wrong because
  3497. //of versions < 1.8.4)
  3498. if($num>0)
  3499. {
  3500. $i = 1;
  3501. while($row = Database::fetch_array($res))
  3502. {
  3503. if($row['display_order'] != $i)
  3504. { //if we find a gap in the order, we need to fix it
  3505. $need_fix = true;
  3506. $sql_u = "UPDATE $lp_table SET display_order = $i WHERE id = ".$row['id'];
  3507. $res_u = api_sql_query($sql_u, __FILE__, __LINE__);
  3508. }
  3509. $i++;
  3510. }
  3511. }
  3512. return true;
  3513. }
  3514. /**
  3515. * Updates the "prevent_reinit" value that enables control on reinitialising items on second view
  3516. * @return boolean True if prevent_reinit has been set to 'on', false otherwise (or 1 or 0 in this case)
  3517. */
  3518. function update_reinit(){
  3519. if($this->debug>0){error_log('New LP - In learnpath::update_reinit()',0);}
  3520. $lp_table = Database::get_course_table('lp');
  3521. $sql = "SELECT * FROM $lp_table WHERE id = ".$this->get_id();
  3522. $res = api_sql_query($sql, __FILE__, __LINE__);
  3523. if(Database::num_rows($res)>0){
  3524. $row = Database::fetch_array($res);
  3525. $force = $row['prevent_reinit'];
  3526. if($force == 1){
  3527. $force = 0;
  3528. }elseif($force == 0){
  3529. $force = 1;
  3530. }
  3531. $sql = "UPDATE $lp_table SET prevent_reinit = $force WHERE id = ".$this->get_id();
  3532. $res = api_sql_query($sql,__FILE__,__LINE__);
  3533. $this->prevent_reinit = $force;
  3534. return $force;
  3535. }else{
  3536. if($this->debug>2){error_log('New LP - Problem in update_reinit() - could not find LP '.$this->get_id().' in DB',0);}
  3537. }
  3538. return -1;
  3539. }
  3540. /**
  3541. * Updates the "scorm_debug" value that shows or hide the debug window
  3542. * @return boolean True if scorm_debug has been set to 'on', false otherwise (or 1 or 0 in this case)
  3543. */
  3544. function update_scorm_debug(){
  3545. if($this->debug>0){error_log('New LP - In learnpath::update_scorm_debug()',0);}
  3546. $lp_table = Database::get_course_table('lp');
  3547. $sql = "SELECT * FROM $lp_table WHERE id = ".$this->get_id();
  3548. $res = api_sql_query($sql, __FILE__, __LINE__);
  3549. if(Database::num_rows($res)>0){
  3550. $row = Database::fetch_array($res);
  3551. $force = $row['debug'];
  3552. if($force == 1){
  3553. $force = 0;
  3554. }elseif($force == 0){
  3555. $force = 1;
  3556. }
  3557. $sql = "UPDATE $lp_table SET debug = $force WHERE id = ".$this->get_id();
  3558. $res = api_sql_query($sql,__FILE__,__LINE__);
  3559. $this->scorm_debug = $force;
  3560. return $force;
  3561. }else{
  3562. if($this->debug>2){error_log('New LP - Problem in update_scorm_debug() - could not find LP '.$this->get_id().' in DB',0);}
  3563. }
  3564. return -1;
  3565. }
  3566. /**
  3567. * Function that makes a call to the function sort_tree_array and create_tree_array
  3568. *
  3569. * @author Kevin Van Den Haute
  3570. *
  3571. * @param unknown_type $array
  3572. */
  3573. function tree_array($array)
  3574. {
  3575. $array = $this->sort_tree_array($array);
  3576. $this->create_tree_array($array);
  3577. }
  3578. /**
  3579. * Creates an array with the elements of the learning path tree in it
  3580. *
  3581. * @author Kevin Van Den Haute
  3582. *
  3583. * @param array $array
  3584. * @param int $parent
  3585. * @param int $depth
  3586. * @param array $tmp
  3587. */
  3588. function create_tree_array($array, $parent = 0, $depth = -1, $tmp = array())
  3589. {
  3590. if(is_array($array))
  3591. {
  3592. for($i = 0; $i < count($array); $i++)
  3593. {
  3594. if($array[$i]['parent_item_id'] == $parent)
  3595. {
  3596. if(!in_array($array[$i]['parent_item_id'], $tmp))
  3597. {
  3598. $tmp[] = $array[$i]['parent_item_id'];
  3599. $depth++;
  3600. }
  3601. $preq = (empty($array[$i]['prerequisite'])?'':$array[$i]['prerequisite']);
  3602. $this->arrMenu[] = array(
  3603. 'id' => $array[$i]['id'],
  3604. 'item_type' => $array[$i]['item_type'],
  3605. 'title' => $array[$i]['title'],
  3606. 'path' => $array[$i]['path'],
  3607. 'description' => $array[$i]['description'],
  3608. 'parent_item_id' => $array[$i]['parent_item_id'],
  3609. 'previous_item_id' => $array[$i]['previous_item_id'],
  3610. 'next_item_id' => $array[$i]['next_item_id'],
  3611. 'min_score' => $array[$i]['min_score'],
  3612. 'max_score' => $array[$i]['max_score'],
  3613. 'mastery_score' => $array[$i]['mastery_score'],
  3614. 'display_order' => $array[$i]['display_order'],
  3615. 'prerequisite' => $preq,
  3616. 'depth' => $depth,
  3617. 'audio' => $array[$i]['audio']
  3618. );
  3619. $this->create_tree_array($array, $array[$i]['id'], $depth, $tmp);
  3620. }
  3621. }
  3622. }
  3623. }
  3624. /**
  3625. * Sorts a multi dimensional array by parent id and display order
  3626. * @author Kevin Van Den Haute
  3627. *
  3628. * @param array $array (array with al the learning path items in it)
  3629. *
  3630. * @return array
  3631. */
  3632. function sort_tree_array($array)
  3633. {
  3634. foreach($array as $key => $row)
  3635. {
  3636. $parent[$key] = $row['parent_item_id'];
  3637. $position[$key] = $row['display_order'];
  3638. }
  3639. if(count($array) > 0)
  3640. array_multisort($parent, SORT_ASC, $position, SORT_ASC, $array);
  3641. return $array;
  3642. }
  3643. /**
  3644. * Function that creates a table structure with a learning path his modules, chapters and documents.
  3645. * Also the actions for the modules, chapters and documents are in this table.
  3646. *
  3647. * @author Kevin Van Den Haute
  3648. *
  3649. * @param int $lp_id
  3650. *
  3651. * @return string
  3652. */
  3653. function overview()
  3654. {
  3655. global $charset, $_course;
  3656. $return = '';
  3657. $tbl_lp_item = Database::get_course_table('lp_item');
  3658. $sql = "
  3659. SELECT *
  3660. FROM " . $tbl_lp_item . "
  3661. WHERE
  3662. lp_id = " . $this->lp_id;
  3663. $result = api_sql_query($sql, __FILE__, __LINE__);
  3664. $arrLP = array();
  3665. $mycharset=api_get_setting('platform_charset');
  3666. while($row = Database::fetch_array($result))
  3667. {
  3668. $row['title'] = mb_convert_encoding($row['title'], $mycharset,$this->encoding);
  3669. $arrLP[] = array(
  3670. 'id' => $row['id'],
  3671. 'item_type' => $row['item_type'],
  3672. 'title' => $row['title'],
  3673. 'description' => $row['description'],
  3674. 'parent_item_id' => $row['parent_item_id'],
  3675. 'previous_item_id' => $row['previous_item_id'],
  3676. 'next_item_id' => $row['next_item_id'],
  3677. 'max_score' => $row['max_score'],
  3678. 'min_score' => $row['min_score'],
  3679. 'mastery_score' => $row['mastery_score'],
  3680. 'prerequisite' => $row['prerequisite'],
  3681. 'display_order' => $row['display_order'],
  3682. 'audio' => $row['audio']
  3683. );
  3684. }
  3685. $this->tree_array($arrLP);
  3686. $arrLP = $this->arrMenu;
  3687. unset($this->arrMenu);
  3688. if(api_is_allowed_to_edit())
  3689. {
  3690. $return .= '<div class="actions">';
  3691. $return .= '<a href="' .api_get_self(). '?cidReq=' . $_GET['cidReq'] . '&amp;action=build&amp;lp_id=' . $this->lp_id . '">'.Display::return_icon('learnpath_build.gif', get_lang('Build')).' '.get_lang('Build').'</a>';
  3692. $return .= '<span>'.Display::return_icon('learnpath_organize.gif', get_lang("BasicOverview")).' '.get_lang("BasicOverview").'</span>';
  3693. $return .= '<a href="lp_controller.php?cidReq='.$_GET['cidReq'].'&action=view&lp_id='.$this->lp_id.'">'.Display::return_icon('learnpath_view.gif', get_lang("Display")).' '.get_lang("Display").'</a>';
  3694. $return .= '<a href="'.api_get_self().'?cidReq='.Security::remove_XSS($_GET['cidReq']).'&amp;action='.Security::remove_XSS($_GET['action']).'&amp;lp_id='.Security::remove_XSS($_GET['lp_id']).'&amp;updateaudio=true">'.Display::return_icon('audio.gif', get_lang('UpdateAllAudioFragments')).' '.get_lang('UpdateAllAudioFragments').'</a>';
  3695. $return .= '</div>';
  3696. }
  3697. // we need to start a form when we want to update all the mp3 files
  3698. if ($_GET['updateaudio'] == 'true' AND count($arrLP) <> 0)
  3699. {
  3700. $return .= '<form action="'.api_get_self().'?cidReq='.Security::remove_XSS($_GET['cidReq']).'&amp;action='.Security::remove_XSS($_GET['action']).'&amp;lp_id='.Security::remove_XSS($_GET['lp_id']).'" method="post" enctype="multipart/form-data" name="updatemp3" id="updatemp3">';
  3701. $return .= Display::display_warning_message(get_lang('LeaveEmptyToKeepCurrentFile'));
  3702. }
  3703. $return .= '<table class="data_table">' . "\n";
  3704. $return .= "\t" . '<tr>' . "\n";
  3705. $return .= "\t" . '<th width="75%">'.get_lang("Title").'</th>' . "\n";
  3706. //$return .= "\t" . '<th>'.get_lang("Description").'</th>' . "\n";
  3707. $return .= "\t" . '<th>'.get_lang("Audio").'</th>' . "\n";
  3708. $return .= "\t" . '<th>'.get_lang("Move").'</th>' . "\n";
  3709. $return .= "\t" . '<th>'.get_lang("Actions").'</th>' . "\n";
  3710. $return .= "\t" . '</tr>' . "\n";
  3711. for($i = 0; $i < count($arrLP); $i++)
  3712. {
  3713. $title=$arrLP[$i]['title'];
  3714. if($arrLP[$i]['description'] == '')
  3715. $arrLP[$i]['description'] = '&nbsp;';
  3716. if (($i % 2)==0) { $oddclass="row_odd"; } else { $oddclass="row_even"; }
  3717. $return .= "\t" . '<tr class="'.$oddclass.'">' . "\n";
  3718. $return .= "\t\t" . '<td style="padding-left:' . $arrLP[$i]['depth'] * 10 . 'px;"><img align="left" src="../img/lp_' . $arrLP[$i]['item_type'] . '.png" style="margin-right:3px;" />' . $title . '</td>' . "\n";
  3719. //$return .= "\t\t" . '<td>' . stripslashes($arrLP[$i]['description']) . '</td>' . "\n";
  3720. // The audio column
  3721. $return .= "\t\t" . '<td>';
  3722. if (!$_GET['updateaudio'] OR $_GET['updateaudio'] <> 'true')
  3723. {
  3724. if (!empty($arrLP[$i]['audio']))
  3725. {
  3726. $return .= '<span id="container'.$i.'"><a href="http://www.macromedia.com/go/getflashplayer">Get the Flash Player</a> to see this player.</span>';
  3727. $return .= '<script type="text/javascript" src="../inc/lib/mediaplayer/swfobject.js"></script>';
  3728. $return .= '<script type="text/javascript">
  3729. var s1 = new SWFObject("../inc/lib/mediaplayer/player.swf","ply","250","20","9","#FFFFFF");
  3730. s1.addParam("allowscriptaccess","always");
  3731. s1.addParam("flashvars","file=../../courses/'.$_course['path'].'/document/audio/'.$arrLP[$i]['audio'].'&image=preview.jpg");
  3732. s1.write("container'.$i.'");
  3733. </script>';
  3734. }
  3735. else
  3736. {
  3737. $return .= ' - ';
  3738. }
  3739. }
  3740. else
  3741. {
  3742. $return .= ' <input type="file" name="mp3file'.$arrLP[$i]['id'].'" id="mp3file" />';
  3743. if (!empty($arrLP[$i]['audio']))
  3744. {
  3745. $return .= '<input type="checkbox" name="removemp3'.$arrLP[$i]['id'].'" id="checkbox'.$arrLP[$i]['id'].'" />'.get_lang('RemoveAudio');
  3746. }
  3747. }
  3748. $return .= '</td>' . "\n";
  3749. if(api_is_allowed_to_edit())
  3750. {
  3751. $return .= "\t\t" . '<td>' . "\n";
  3752. if($arrLP[$i]['previous_item_id'] != 0)
  3753. {
  3754. $return .= "\t\t\t" . '<a href="' .api_get_self(). '?cidReq=' . $_GET['cidReq'] . '&amp;action=move_item&amp;direction=up&amp;id=' . $arrLP[$i]['id'] . '&amp;lp_id=' . $this->lp_id . '">';
  3755. $return .= '<img alt="" src="../img/arrow_up_' . ($arrLP[$i]['depth'] % 3) . '.gif" title="' . get_lang('MoveUp') . '"/>';
  3756. $return .= '</a>' . "\n";
  3757. }
  3758. else
  3759. $return .= "\t\t\t" . '<img alt="" src="../img/blanco.png" title="" />' . "\n";
  3760. if($arrLP[$i]['next_item_id'] != 0)
  3761. {
  3762. $return .= "\t\t\t" . '<a href="' .api_get_self(). '?cidReq=' . $_GET['cidReq'] . '&amp;action=move_item&amp;direction=down&amp;id=' . $arrLP[$i]['id'] . '&amp;lp_id=' . $this->lp_id . '">';
  3763. $return .= '<img src="../img/arrow_down_' . ($arrLP[$i]['depth'] % 3) . '.gif" title="' . get_lang('MoveDown') . '" />';
  3764. $return .= '</a>' . "\n";
  3765. }
  3766. else
  3767. $return .= "\t\t\t" . '<img alt="" src="../img/blanco.png" title="" />' . "\n";
  3768. $return .= "\t\t" . '</td>' . "\n";
  3769. $return .= "\t\t" . '<td>' . "\n";
  3770. if($arrLP[$i]['item_type'] != 'dokeos_chapter' && $arrLP[$i]['item_type'] != 'dokeos_module')
  3771. {
  3772. $return .= "\t\t\t" . '<a href="' .api_get_self(). '?cidReq=' . $_GET['cidReq'] . '&amp;action=edit_item&amp;view=build&amp;id=' . $arrLP[$i]['id'] . '&amp;lp_id=' . $this->lp_id . '">';
  3773. $return .= '<img alt="" src="../img/edit.gif" title="' . get_lang('_edit_learnpath_module') . '" />';
  3774. $return .= '</a>' . "\n";
  3775. }
  3776. else
  3777. {
  3778. $return .= "\t\t\t" . '<a href="' .api_get_self(). '?cidReq=' . $_GET['cidReq'] . '&amp;action=edit_item&amp;id=' . $arrLP[$i]['id'] . '&amp;lp_id=' . $this->lp_id . '">';
  3779. $return .= '<img alt="" src="../img/edit.gif" title="' . get_lang('_edit_learnpath_module') . '" />';
  3780. $return .= '</a>' . "\n";
  3781. }
  3782. $return .= "\t\t\t" . '<a href="' .api_get_self(). '?cidReq=' . $_GET['cidReq'] . '&amp;action=delete_item&amp;id=' . $arrLP[$i]['id'] . '&amp;lp_id=' . $this->lp_id . '" onclick="return confirmation(\'' . addslashes($title). '\');">';
  3783. $return .= '<img alt="" src="../img/delete.gif" title="' . get_lang('_delete_learnpath_module') . '" />';
  3784. $return .= '</a>' . "\n";
  3785. $return .= "\t\t" . '</td>' . "\n";
  3786. }
  3787. $return .= "\t" . '</tr>' . "\n";
  3788. }
  3789. if(count($arrLP) == 0)
  3790. {
  3791. $return .= "\t" . '<tr>' . "\n";
  3792. $return .= "\t\t" . '<td colspan="4">'.get_lang("NoItemsInLp").'</td>' . "\n";
  3793. $return .= "\t" . '</tr>' . "\n";
  3794. }
  3795. // we need to close the form when we are updating the mp3 files
  3796. if ($_GET['updateaudio'] == 'true')
  3797. {
  3798. $return .= '<tr><th></th><th><input type="submit" name="save_audio" id="save_audio" value="'.get_lang('SaveAudio').'" /></th><th></th><th></th></tr>';
  3799. }
  3800. $return .= '</table>' . "\n";
  3801. // we need to close the form when we are updating the mp3 files
  3802. if ($_GET['updateaudio'] == 'true' AND count($arrLP) <> 0)
  3803. {
  3804. $return .= '</form>';
  3805. }
  3806. return $return;
  3807. }
  3808. /**
  3809. * This functions builds the LP tree based on data from the database.
  3810. *
  3811. * @return string
  3812. * @uses dtree.js :: necessary javascript for building this tree
  3813. */
  3814. function build_tree()
  3815. {
  3816. $return = "<script type=\"text/javascript\">\n";
  3817. $return .= "\tm = new dTree('m');\n\n";
  3818. $return .= "\tm.config.folderLinks = true;\n";
  3819. $return .= "\tm.config.useCookies = true;\n";
  3820. $return .= "\tm.config.useIcons = true;\n";
  3821. $return .= "\tm.config.useLines = true;\n";
  3822. $return .= "\tm.config.useSelection = true;\n";
  3823. $return .= "\tm.config.useStatustext = false;\n\n";
  3824. $menu = 0;
  3825. $parent = '';
  3826. $return .= "\tm.add(" . $menu . ", -1, '" . addslashes($this->name) . "');\n";
  3827. $tbl_lp_item = Database::get_course_table('lp_item');
  3828. $sql = "
  3829. SELECT *
  3830. FROM " . $tbl_lp_item . "
  3831. WHERE
  3832. lp_id = " . $this->lp_id;
  3833. $result = api_sql_query($sql, __FILE__, __LINE__);
  3834. $arrLP = array();
  3835. $mycharset=api_get_setting('platform_charset');
  3836. while($row = Database::fetch_array($result))
  3837. {
  3838. if($this->encoding!=$mycharset)
  3839. {
  3840. $row['title'] = mb_convert_encoding($row['title'], $mycharset,$this->encoding);
  3841. }
  3842. $arrLP[] = array(
  3843. 'id' => $row['id'],
  3844. 'item_type' => $row['item_type'],
  3845. 'title' => $row['title'],
  3846. 'path' => $row['path'],
  3847. 'description' => $row['description'],
  3848. 'parent_item_id' => $row['parent_item_id'],
  3849. 'previous_item_id' => $row['previous_item_id'],
  3850. 'next_item_id' => $row['next_item_id'],
  3851. 'max_score' => $row['max_score'],
  3852. 'min_score' => $row['min_score'],
  3853. 'mastery_score' => $row['mastery_score'],
  3854. 'display_order' => $row['display_order']);
  3855. }
  3856. $this->tree_array($arrLP);
  3857. $arrLP = $this->arrMenu;
  3858. unset($this->arrMenu);
  3859. $title='';
  3860. for($i = 0; $i < count($arrLP); $i++)
  3861. {
  3862. $title = addslashes($arrLP[$i]['title']);
  3863. $menu_page = api_get_self() . '?cidReq=' . $_GET['cidReq'] . '&amp;action=view_item&amp;id=' . $arrLP[$i]['id'] . '&amp;lp_id=' . $_SESSION['oLP']->lp_id;
  3864. if(file_exists("../img/lp_" . $arrLP[$i]['item_type'] . ".png"))
  3865. {
  3866. $return .= "\tm.add(" . $arrLP[$i]['id'] . ", " . $arrLP[$i]['parent_item_id'] . ", '" . $title . "', '" . $menu_page . "', '', '', '../img/lp_" . $arrLP[$i]['item_type'] . ".png', '../img/lp_" . $arrLP[$i]['item_type'] . ".png');\n";
  3867. }
  3868. else if(file_exists("../img/lp_" . $arrLP[$i]['item_type'] . ".gif"))
  3869. {
  3870. $return .= "\tm.add(" . $arrLP[$i]['id'] . ", " . $arrLP[$i]['parent_item_id'] . ", '" . $title . "', '" . $menu_page . "', '', '', '../img/lp_" . $arrLP[$i]['item_type'] . ".gif', '../img/lp_" . $arrLP[$i]['item_type'] . ".gif');\n";
  3871. }
  3872. else
  3873. {
  3874. $return .= "\tm.add(" . $arrLP[$i]['id'] . ", " . $arrLP[$i]['parent_item_id'] . ", '" . $title . "', '" . $menu_page . "', '', '', '../img/lp_document.png', '../img/lp_document.png');\n";
  3875. }
  3876. if($menu < $arrLP[$i]['id'])
  3877. $menu = $arrLP[$i]['id'];
  3878. }
  3879. $return .= "\n\tdocument.write(m);\n";
  3880. $return .= "\t if(!m.selectedNode) m.s(1);";
  3881. $return .= "</script>\n";
  3882. return $return;
  3883. }
  3884. /**
  3885. * Create a new document //still needs some finetuning
  3886. *
  3887. * @param array $_course
  3888. * @return string
  3889. */
  3890. function create_document($_course)
  3891. {
  3892. $dir = isset($_GET['dir']) ? $_GET['dir'] : $_POST['dir']; // please do not modify this dirname formatting
  3893. if(strstr($dir, '..'))
  3894. $dir = '/';
  3895. if($dir[0] == '.')
  3896. $dir = substr($dir, 1);
  3897. if($dir[0] != '/')
  3898. $dir = '/'.$dir;
  3899. if($dir[strlen($dir) - 1] != '/')
  3900. $dir .= '/';
  3901. $filepath = api_get_path('SYS_COURSE_PATH') . $_course['path'] . '/document' . $dir;
  3902. if(!is_dir($filepath))
  3903. {
  3904. $filepath = api_get_path('SYS_COURSE_PATH') . $_course['path'] . '/document/';
  3905. $dir = '/';
  3906. }
  3907. //stripslashes before calling replace_dangerous_char() because $_POST['title']
  3908. //is already escaped twice when it gets here
  3909. $title = replace_dangerous_char(stripslashes($_POST['title']));
  3910. $title = disable_dangerous_file($title);
  3911. $title = replace_accents($title);
  3912. $filename = $title;
  3913. $content = $_POST['content_lp'];
  3914. $tmp_filename = $filename;
  3915. $i=0;
  3916. while(file_exists($filepath . $tmp_filename . '.html'))
  3917. $tmp_filename = $filename . '_' . ++$i;
  3918. $filename = $tmp_filename . '.html';
  3919. $content = stripslashes(text_filter($content));
  3920. $content = str_replace(api_get_path('WEB_COURSE_PATH'), api_get_path(REL_PATH).'courses/', $content);
  3921. // change the path of mp3 to absolute
  3922. // first regexp deals with ../../../ urls
  3923. $content = preg_replace("|(flashvars=\"file=)(\.+/)+|","$1".api_get_path(REL_COURSE_PATH).$_course['path'].'/document/',$content);
  3924. //second regexp deals with audio/ urls
  3925. $content = preg_replace("|(flashvars=\"file=)([^/]+)/|","$1".api_get_path(REL_COURSE_PATH).$_course['path'].'/document/$2/',$content);
  3926. // for flv player : to prevent edition problem with firefox, we have to use a strange tip (don't blame me please)
  3927. $content = str_replace('</body>','<style type="text/css">body{}</style></body>',$content);
  3928. if(!file_exists($filepath . $filename))
  3929. {
  3930. if($fp = @fopen($filepath . $filename, 'w'))
  3931. {
  3932. fputs($fp, $content);
  3933. fclose($fp);
  3934. $file_size = filesize($filepath . $filename);
  3935. $save_file_path = $dir . $filename;
  3936. $document_id = add_document($_course, $save_file_path, 'file', $file_size, $filename . '.html');
  3937. if($document_id)
  3938. {
  3939. api_item_property_update($_course, TOOL_DOCUMENT, $document_id, 'DocumentAdded', api_get_user_id());
  3940. //update parent folders
  3941. //item_property_update_on_folder($_course, $_GET['dir'], $_user['user_id']);
  3942. $new_comment = (isset($_POST['comment'])) ? trim($_POST['comment']) : '';
  3943. $new_title = (isset($_POST['title'])) ? trim($_POST['title']) : '';
  3944. if($new_comment || $new_title)
  3945. {
  3946. $tbl_doc = Database::get_course_table(TABLE_DOCUMENT);
  3947. $ct = '';
  3948. if($new_comment)
  3949. $ct .= ", comment='" . $new_comment . "'";
  3950. if($new_title)
  3951. $ct .= ", title='" . $new_title . ".html '";
  3952. $sql_update = "
  3953. UPDATE " . $tbl_doc . "
  3954. SET " . substr($ct, 1) . "
  3955. WHERE id = " . $document_id;
  3956. api_sql_query($sql_update, __FILE__, __LINE__);
  3957. }
  3958. }
  3959. return $document_id;
  3960. }
  3961. }
  3962. }
  3963. /**
  3964. * Edit a document based on $_POST and $_GET parameters 'dir' and 'path'
  3965. *
  3966. * @param array $_course array
  3967. * @return void
  3968. */
  3969. function edit_document($_course)
  3970. {
  3971. global $_configuration;
  3972. $dir = isset($_GET['dir']) ? $_GET['dir'] : $_POST['dir']; // please do not modify this dirname formatting
  3973. if(strstr($dir, '..'))
  3974. $dir = '/';
  3975. if($dir[0] == '.')
  3976. $dir = substr($dir, 1);
  3977. if($dir[0] != '/')
  3978. $dir = '/'.$dir;
  3979. if($dir[strlen($dir) - 1] != '/')
  3980. $dir .= '/';
  3981. $filepath = api_get_path('SYS_COURSE_PATH') . $_course['path'] . '/document'.$dir;
  3982. if(!is_dir($filepath))
  3983. {
  3984. $filepath = api_get_path('SYS_COURSE_PATH') . $_course['path'] . '/document/';
  3985. $dir = '/';
  3986. }
  3987. $table_doc = Database::get_course_table(TABLE_DOCUMENT);
  3988. $sql = "
  3989. SELECT path
  3990. FROM " . $table_doc . "
  3991. WHERE id = " . $_POST['path'];
  3992. $res = api_sql_query($sql, __FILE__, __LINE__);
  3993. $row = Database::fetch_array($res);
  3994. $content = stripslashes($_POST['content_lp']);
  3995. $file = $filepath . $row['path'];
  3996. if($fp = @fopen($file, 'w'))
  3997. {
  3998. $content = text_filter($content);
  3999. $content = str_replace(api_get_path('WEB_COURSE_PATH'), $_configuration['url_append'].'/courses/', $content);
  4000. // change the path of mp3 to absolute
  4001. // first regexp deals with ../../../ urls
  4002. $content = preg_replace("|(flashvars=\"file=)(\.+/)+|","$1".api_get_path(REL_COURSE_PATH).$_course['path'].'/document/',$content);
  4003. //second regexp deals with audio/ urls
  4004. $content = preg_replace("|(flashvars=\"file=)([^/]+)/|","$1".api_get_path(REL_COURSE_PATH).$_course['path'].'/document/$2/',$content);
  4005. fputs($fp, $content);
  4006. fclose($fp);
  4007. }
  4008. }
  4009. /**
  4010. * Displays the selected item, with a panel for manipulating the item
  4011. *
  4012. * @param int $item_id
  4013. * @param string $msg
  4014. * @return string
  4015. */
  4016. function display_item($item_id, $iframe = true, $msg = '')
  4017. {
  4018. global $_course; //will disappear
  4019. $return = '';
  4020. if(is_numeric($item_id))
  4021. {
  4022. $tbl_lp_item = Database::get_course_table('lp_item');
  4023. $tbl_doc = Database::get_course_table(TABLE_DOCUMENT);
  4024. $sql = "
  4025. SELECT
  4026. lp.*
  4027. FROM " . $tbl_lp_item . " as lp
  4028. WHERE
  4029. lp.id = " . $item_id;
  4030. $result = api_sql_query($sql, __FILE__, __LINE__);
  4031. while($row = Database::fetch_array($result))
  4032. {
  4033. $return .= $this->display_manipulate($item_id, $row['item_type']);
  4034. $return .= '<div style="padding:10px;">';
  4035. if($msg != '')
  4036. $return .= $msg;
  4037. if($this->encoding=='UTF-8')
  4038. {
  4039. $row['title'] = utf8_decode($row['title']);
  4040. }
  4041. $return .= '<p class="lp_title">' . stripslashes($row['title']) . '</p>';
  4042. //$return .= '<p class="lp_text">' . ((trim($row['description']) == '') ? 'no description' : stripslashes($row['description'])) . '</p>';
  4043. //$return .= '<hr />';
  4044. if($row['item_type'] == TOOL_DOCUMENT)
  4045. {
  4046. $tbl_doc = Database :: get_course_table(TABLE_DOCUMENT);
  4047. $sql_doc = "SELECT path FROM " . $tbl_doc . " WHERE id = " . $row['path'];
  4048. $result=api_sql_query($sql_doc, __FILE__, __LINE__);
  4049. $path_file=Database::result($result,0,0);
  4050. $path_parts = pathinfo($path_file);
  4051. if(in_array($path_parts['extension'],array('html','txt','png', 'jpg', 'JPG', 'jpeg', 'JPEG', 'gif', 'swf')))
  4052. {
  4053. $return .= $this->display_document($row['path'], true, true);
  4054. }
  4055. }
  4056. $return .= '</div>';
  4057. }
  4058. }
  4059. return $return;
  4060. }
  4061. /**
  4062. * Shows the needed forms for editing a specific item
  4063. *
  4064. * @param int $item_id
  4065. * @return string
  4066. */
  4067. function display_edit_item($item_id)
  4068. {
  4069. global $_course; //will disappear
  4070. $return = '';
  4071. if(is_numeric($item_id))
  4072. {
  4073. $tbl_lp_item = Database::get_course_table('lp_item');
  4074. $sql = "
  4075. SELECT *
  4076. FROM " . $tbl_lp_item . "
  4077. WHERE id = " . $item_id;
  4078. $res = api_sql_query($sql, __FILE__, __LINE__);
  4079. $row = Database::fetch_array($res);
  4080. switch($row['item_type'])
  4081. {
  4082. case 'dokeos_chapter': case 'dir' : case 'asset' : case 'sco' :
  4083. if(isset($_GET['view']) && $_GET['view'] == 'build')
  4084. {
  4085. $return .= $this->display_manipulate($item_id, $row['item_type']);
  4086. $return .= $this->display_item_form($row['item_type'], get_lang("EditCurrentChapter").' :', 'edit', $item_id, $row);
  4087. }
  4088. else
  4089. {
  4090. $return .= $this->display_item_small_form($row['item_type'], get_lang("EditCurrentChapter").' :', $row);
  4091. }
  4092. break;
  4093. case TOOL_DOCUMENT:
  4094. $tbl_doc = Database::get_course_table(TABLE_DOCUMENT);
  4095. $sql_step = "
  4096. SELECT
  4097. lp.*,
  4098. doc.path as dir
  4099. FROM " . $tbl_lp_item . " as lp
  4100. LEFT JOIN " . $tbl_doc . " as doc ON doc.id = lp.path
  4101. WHERE
  4102. lp.id = " . $item_id;
  4103. $res_step = api_sql_query($sql_step, __FILE__, __LINE__);
  4104. $row_step = Database::fetch_array($res_step);
  4105. $return .= $this->display_manipulate($item_id, $row['item_type']);
  4106. $return .= $this->display_document_form('edit', $item_id, $row_step);
  4107. break;
  4108. case TOOL_LINK:
  4109. $return .= $this->display_manipulate($item_id, $row['item_type']);
  4110. $return .= $this->display_link_form('edit', $item_id, $row);
  4111. break;
  4112. case 'dokeos_module':
  4113. if(isset($_GET['view']) && $_GET['view'] == 'build')
  4114. {
  4115. $return .= $this->display_manipulate($item_id, $row['item_type']);
  4116. $return .= $this->display_item_form($row['item_type'], get_lang("EditCurrentModule").' :', 'edit', $item_id, $row);
  4117. }
  4118. else
  4119. {
  4120. $return .= $this->display_item_small_form($row['item_type'], get_lang("EditCurrentModule").' :', $row);
  4121. }
  4122. break;
  4123. case TOOL_QUIZ:
  4124. $return .= $this->display_manipulate($item_id, $row['item_type']);
  4125. $return .= $this->display_quiz_form('edit', $item_id, $row);
  4126. break;
  4127. case TOOL_HOTPOTATOES:
  4128. $return .= $this->display_manipulate($item_id, $row['item_type']);
  4129. $return .= $this->display_hotpotatoes_form('edit', $item_id, $row);
  4130. break;
  4131. case TOOL_STUDENTPUBLICATION:
  4132. $return .= $this->display_manipulate($item_id, $row['item_type']);
  4133. $return .= $this->display_student_publication_form('edit', $item_id, $row);
  4134. break;
  4135. case TOOL_FORUM:
  4136. $return .= $this->display_manipulate($item_id, $row['item_type']);
  4137. $return .= $this->display_forum_form('edit', $item_id, $row);
  4138. break;
  4139. case TOOL_THREAD:
  4140. $return .= $this->display_manipulate($item_id, $row['item_type']);
  4141. $return .= $this->display_thread_form('edit', $item_id, $row);
  4142. break;
  4143. }
  4144. }
  4145. return $return;
  4146. }
  4147. /**
  4148. * Function that displays a list with al the resources that could be added to the learning path
  4149. *
  4150. * @return string
  4151. */
  4152. function display_resources()
  4153. {
  4154. global $_course; //TODO: don't use globals
  4155. $return .= '<div class="sectiontitle">'.get_lang('CreateNewStep').'</div>';
  4156. $return .= '<div class="sectioncomment"><a href="' .api_get_self(). '?cidReq=' . $_GET['cidReq'] . '&amp;action=add_item&amp;type=' . TOOL_DOCUMENT . '&amp;lp_id=' . $_SESSION['oLP']->lp_id . '">'.get_lang("NewDocument").'</a></div>';
  4157. $return .= '<div class="sectiontitle">'.get_lang('UseAnExistingResource').'</div>';
  4158. $return .= '<div class="sectioncomment">';
  4159. /* get all the docs */
  4160. $return .= $this->get_documents();
  4161. /* get all the exercises */
  4162. $return .= $this->get_exercises();
  4163. /* get all the links */
  4164. $return .= $this->get_links();
  4165. /* get al the student publications */
  4166. $return .= $this->get_student_publications();
  4167. /* get al the forums */
  4168. $return .= $this->get_forums();
  4169. $return .= '</div>';
  4170. return $return;
  4171. }
  4172. /**
  4173. * Returns the extension of a document
  4174. *
  4175. * @param unknown_type $filename
  4176. * @return unknown
  4177. */
  4178. function get_extension($filename)
  4179. {
  4180. $explode = explode('.', $filename);
  4181. return $explode[count($explode) - 1];
  4182. }
  4183. /**
  4184. * Displays a document by id
  4185. *
  4186. * @param unknown_type $id
  4187. * @return unknown
  4188. */
  4189. function display_document($id, $show_title = false, $iframe = true, $edit_link = false)
  4190. {
  4191. global $_course; //temporary
  4192. $return = '';
  4193. $tbl_doc = Database::get_course_table(TABLE_DOCUMENT);
  4194. $sql_doc = "
  4195. SELECT *
  4196. FROM " . $tbl_doc . "
  4197. WHERE id = " . $id;
  4198. $res_doc = api_sql_query($sql_doc, __FILE__, __LINE__);
  4199. $row_doc = Database::fetch_array($res_doc);
  4200. //if($show_title)
  4201. //$return .= '<p class="lp_title">' . $row_doc['title'] . ($edit_link ? ' [ <a href="' .api_get_self(). '?cidReq=' . $_GET['cidReq'] . '&amp;action=add_item&amp;type=' . TOOL_DOCUMENT . '&amp;file=' . $_GET['file'] . '&amp;edit=true&amp;lp_id=' . $_GET['lp_id'] . '">Edit this document</a> ]' : '') . '</p>';
  4202. //TODO: add a path filter
  4203. if($iframe){
  4204. $return .= '<iframe id="learnpath_preview_frame" frameborder="0" src="' . api_get_path(WEB_COURSE_PATH) . $_course['path'] . '/document' . str_replace('%2F','/',urlencode($row_doc['path'])) . '?'.api_get_cidreq().'"></iframe>';
  4205. }
  4206. else{
  4207. $return .= file_get_contents(api_get_path(SYS_COURSE_PATH) . $_course['path'] . '/document' . $row_doc['path']);
  4208. }
  4209. return $return;
  4210. }
  4211. /**
  4212. * Return HTML form to add/edit a quiz
  4213. *
  4214. * @param string Action (add/edit)
  4215. * @param integer Item ID if already exists
  4216. * @param mixed Extra information (quiz ID if integer)
  4217. * @return string HTML form
  4218. */
  4219. function display_quiz_form($action = 'add', $id = 0, $extra_info = '')
  4220. {
  4221. global $charset;
  4222. $tbl_lp_item = Database::get_course_table(TABLE_LP_ITEM);
  4223. $tbl_quiz = Database::get_course_table(TABLE_QUIZ_TEST);
  4224. if($id != 0 && is_array($extra_info))
  4225. {
  4226. $item_title = stripslashes($extra_info['title']);
  4227. $item_description = stripslashes($extra_info['description']);
  4228. }
  4229. elseif(is_numeric($extra_info))
  4230. {
  4231. $sql_quiz = "
  4232. SELECT
  4233. title,
  4234. description
  4235. FROM " . $tbl_quiz . "
  4236. WHERE id = " . $extra_info;
  4237. $result = api_sql_query($sql_quiz, __FILE__, __LINE__);
  4238. $row = Database::fetch_array($result);
  4239. $item_title = $row['title'];
  4240. $item_description = $row['description'];
  4241. }
  4242. else
  4243. {
  4244. $item_title = '';
  4245. $item_description = '';
  4246. }
  4247. $item_title = mb_convert_encoding($item_title,$charset,$this->encoding);
  4248. $return = '<div class="sectiontitle">';
  4249. if($id != 0 && is_array($extra_info))
  4250. $parent = $extra_info['parent_item_id'];
  4251. else
  4252. $parent = 0;
  4253. $sql = "
  4254. SELECT *
  4255. FROM " . $tbl_lp_item . "
  4256. WHERE
  4257. lp_id = " . $this->lp_id;
  4258. $result = api_sql_query($sql, __FILE__, __LINE__);
  4259. $arrLP = array();
  4260. while($row = Database::fetch_array($result))
  4261. {
  4262. $arrLP[] = array(
  4263. 'id' => $row['id'],
  4264. 'item_type' => $row['item_type'],
  4265. 'title' => $row['title'],
  4266. 'path' => $row['path'],
  4267. 'description' => $row['description'],
  4268. 'parent_item_id' => $row['parent_item_id'],
  4269. 'previous_item_id' => $row['previous_item_id'],
  4270. 'next_item_id' => $row['next_item_id'],
  4271. 'display_order' => $row['display_order'],
  4272. 'max_score' => $row['max_score'],
  4273. 'min_score' => $row['min_score'],
  4274. 'mastery_score' => $row['mastery_score'],
  4275. 'prerequisite' => $row['prerequisite']);
  4276. }
  4277. $this->tree_array($arrLP);
  4278. $arrLP = $this->arrMenu;
  4279. unset($this->arrMenu);
  4280. if($action == 'add')
  4281. $return .= get_lang("CreateTheExercise").'&nbsp;:' . "\n";
  4282. elseif($action == 'move')
  4283. $return .= get_lang("MoveTheCurrentExercise").'&nbsp;:' . "\n";
  4284. else
  4285. $return .= get_lang("EditCurrentExecice").'&nbsp;:' . "\n";
  4286. if(isset($_GET['edit']) && $_GET['edit'] == 'true')
  4287. {
  4288. $return .= '<div class="warning-message">';
  4289. $return .= '<p class="lp_title">'.get_lang("Warning").' !</p>';
  4290. $return .= get_lang("WarningEditingDocument");
  4291. $return .= '</div>';
  4292. }
  4293. $return .= '</div>';
  4294. $return .= '<div class="sectioncomment">';
  4295. $return .= '<form method="POST">' . "\n";
  4296. $return .= "\t" . '<table>' . "\n";
  4297. if($action != 'move')
  4298. {
  4299. $return .= "\t\t" . '<tr>' . "\n";
  4300. $return .= "\t\t\t" . '<td class="label"><label for="idTitle">'.get_lang("Title").'&nbsp;:</label></td>' . "\n";
  4301. $return .= "\t\t\t" . '<td class="input"><input id="idTitle" name="title" type="text" class="learnpath_item_form" value="' . $item_title . '" /></td>' . "\n";
  4302. $return .= "\t\t" . '</tr>' . "\n";
  4303. }
  4304. $return .= "\t\t" . '<tr>' . "\n";
  4305. $return .= "\t\t\t" . '<td class="label"><label for="idParent">'.get_lang("Parent").'&nbsp;:</label></td>' . "\n";
  4306. $return .= "\t\t\t" . '<td class="input">' . "\n";
  4307. $return .= "\t\t\t\t" . '<select id="idParent" name="parent" onchange="load_cbo(this.value);" class="learnpath_item_form" size="1">';
  4308. $return .= "\t\t\t\t\t" . '<option class="top" value="0">' . $this->name . '</option>';
  4309. $arrHide = array($id);
  4310. for($i = 0; $i < count($arrLP); $i++)
  4311. {
  4312. if($action != 'add')
  4313. {
  4314. if(($arrLP[$i]['item_type'] == 'dokeos_module' || $arrLP[$i]['item_type'] == 'dokeos_chapter' || $arrLP[$i]['item_type'] == 'dir') && !in_array($arrLP[$i]['id'], $arrHide) && !in_array($arrLP[$i]['parent_item_id'], $arrHide))
  4315. {
  4316. $return .= "\t\t\t\t\t" . '<option ' . (($parent == $arrLP[$i]['id']) ? 'selected="selected" ' : '') . 'style="padding-left:' . ($arrLP[$i]['depth'] * 10) . 'px;" value="' . $arrLP[$i]['id'] . '">' . mb_convert_encoding($arrLP[$i]['title'],$charset,$this->encoding) . '</option>';
  4317. }
  4318. else
  4319. {
  4320. $arrHide[] = $arrLP[$i]['id'];
  4321. }
  4322. }
  4323. else
  4324. {
  4325. if($arrLP[$i]['item_type'] == 'dokeos_module' || $arrLP[$i]['item_type'] == 'dokeos_chapter' || $arrLP[$i]['item_type'] == 'dir')
  4326. $return .= "\t\t\t\t\t" . '<option ' . (($parent == $arrLP[$i]['id']) ? 'selected="selected" ' : '') . 'style="padding-left:' . ($arrLP[$i]['depth'] * 10) . 'px;" value="' . $arrLP[$i]['id'] . '">' . mb_convert_encoding($arrLP[$i]['title'],$charset,$this->encoding) . '</option>';
  4327. }
  4328. }
  4329. if (is_array($arrLP))
  4330. {
  4331. reset($arrLP);
  4332. }
  4333. $return .= "\t\t\t\t" . '</select>';
  4334. $return .= "\t\t\t" . '</td>' . "\n";
  4335. $return .= "\t\t" . '</tr>' . "\n";
  4336. $return .= "\t\t" . '<tr>' . "\n";
  4337. $return .= "\t\t\t" . '<td class="label"><label for="idPosition">'.get_lang("Position").'&nbsp;:</label></td>' . "\n";
  4338. $return .= "\t\t\t" . '<td class="input">' . "\n";
  4339. $return .= "\t\t\t\t" . '<select class="learnpath_item_form" id="idPosition" name="previous" size="1">';
  4340. $return .= "\t\t\t\t\t" . '<option class="top" value="0">'.get_lang('FirstPosition').'</option>';
  4341. for($i = 0; $i < count($arrLP); $i++)
  4342. {
  4343. if($arrLP[$i]['parent_item_id'] == $parent && $arrLP[$i]['id'] != $id)
  4344. {
  4345. if($extra_info['previous_item_id'] == $arrLP[$i]['id'])
  4346. $selected = 'selected="selected" ';
  4347. elseif($action == 'add')
  4348. $selected = 'selected="selected" ';
  4349. else
  4350. $selected = '';
  4351. $return .= "\t\t\t\t\t" . '<option ' . $selected . 'value="' . $arrLP[$i]['id'] . '">'.get_lang("After").' "' . mb_convert_encoding($arrLP[$i]['title'],$charset,$this->encoding) . '"</option>';
  4352. }
  4353. }
  4354. $return .= "\t\t\t\t" . '</select>';
  4355. $return .= "\t\t\t" . '</td>' . "\n";
  4356. $return .= "\t\t" . '</tr>' . "\n";
  4357. if($action != 'move')
  4358. {
  4359. $id_prerequisite=0;
  4360. if (is_array($arrLP ))
  4361. {
  4362. foreach($arrLP as $key=>$value){
  4363. if($value['id']==$id){
  4364. $id_prerequisite=$value['prerequisite'];
  4365. break;
  4366. }
  4367. }
  4368. }
  4369. $arrHide=array();
  4370. for($i = 0; $i < count($arrLP); $i++)
  4371. {
  4372. if($arrLP[$i]['id'] != $id && $arrLP[$i]['item_type'] != 'dokeos_chapter')
  4373. {
  4374. if($extra_info['previous_item_id'] == $arrLP[$i]['id'])
  4375. $s_selected_position=$arrLP[$i]['id'];
  4376. elseif($action == 'add')
  4377. $s_selected_position=0;
  4378. $arrHide[$arrLP[$i]['id']]['value']=mb_convert_encoding($arrLP[$i]['title'],$charset,$this->encoding);
  4379. }
  4380. }
  4381. $return .= "\t\t" . '<tr>' . "\n";
  4382. $return .= "\t\t\t" . '<td class="label"><label for="idPrerequisites">'.get_lang("Prerequisites").'&nbsp;:</label></td>' . "\n";
  4383. $return .= "\t\t\t" . '<td class="input"><select name="prerequisites" id="prerequisites" class="learnpath_item_form"><option value="0">'.get_lang("NoPrerequisites").'</option>';
  4384. foreach($arrHide as $key => $value){
  4385. if($key==$s_selected_position && $action == 'add'){
  4386. $return .= '<option value="'.$key.'" selected="selected">'.$value['value'].'</option>';
  4387. }
  4388. elseif($key==$id_prerequisite && $action == 'edit'){
  4389. $return .= '<option value="'.$key.'" selected="selected">'.$value['value'].'</option>';
  4390. }
  4391. else{
  4392. $return .= '<option value="'.$key.'">'.$value['value'].'</option>';
  4393. }
  4394. }
  4395. $return .= "</select></td>";
  4396. $return .= "\t\t" . '</tr>' . "\n";
  4397. $return .= "\t\t" . '<tr>' . "\n";
  4398. //Remove temporaly the test description
  4399. //$return .= "\t\t\t" . '<td class="label"><label for="idDescription">'.get_lang("Description").' :</label></td>' . "\n";
  4400. //$return .= "\t\t\t" . '<td class="input"><textarea id="idDescription" name="description" rows="4">' . $item_description . '</textarea></td>' . "\n";
  4401. $return .= "\t\t" . '</tr>' . "\n";
  4402. }
  4403. $return .= "\t\t" . '<tr>' . "\n";
  4404. $return .= "\t\t\t" . '<td>&nbsp;</td><td><input class="button" name="submit_button" type="submit" value="'.get_lang('Ok').'" /></td>' . "\n";
  4405. $return .= "\t\t" . '</tr>' . "\n";
  4406. $return .= "\t" . '</table>' . "\n";
  4407. if($action == 'move')
  4408. {
  4409. $return .= "\t" . '<input name="title" type="hidden" value="' . $item_title . '" />' . "\n";
  4410. $return .= "\t" . '<input name="description" type="hidden" value="' . $item_description . '" />' . "\n";
  4411. }
  4412. if(is_numeric($extra_info))
  4413. {
  4414. $return .= "\t" . '<input name="path" type="hidden" value="' . $extra_info . '" />' . "\n";
  4415. }
  4416. elseif(is_array($extra_info))
  4417. {
  4418. $return .= "\t" . '<input name="path" type="hidden" value="' . $extra_info['path'] . '" />' . "\n";
  4419. }
  4420. $return .= "\t" . '<input name="type" type="hidden" value="'.TOOL_QUIZ.'" />' . "\n";
  4421. $return .= "\t" . '<input name="post_time" type="hidden" value="' . time() . '" />' . "\n";
  4422. $return .= '</form>' . "\n";
  4423. $return .= '</div>' . "\n";
  4424. return $return;
  4425. }
  4426. /**
  4427. * Addition of Hotpotatoes tests
  4428. * @param string Action
  4429. * @param integer Internal ID of the item
  4430. * @param mixed Extra information - can be an array with title and description indexes
  4431. * @return string HTML structure to display the hotpotatoes addition formular
  4432. */
  4433. function display_hotpotatoes_form($action = 'add', $id = 0, $extra_info = '')
  4434. {
  4435. global $charset;
  4436. $uploadPath = DIR_HOTPOTATOES; //defined in main_api
  4437. $tbl_lp_item = Database::get_course_table('lp_item');
  4438. if($id != 0 && is_array($extra_info))
  4439. {
  4440. $item_title = stripslashes($extra_info['title']);
  4441. $item_description = stripslashes($extra_info['description']);
  4442. }
  4443. elseif(is_numeric($extra_info))
  4444. {
  4445. $TBL_DOCUMENT = Database::get_course_table(TABLE_DOCUMENT);
  4446. $sql_hot = "SELECT * FROM ".$TBL_DOCUMENT."
  4447. WHERE path LIKE '".$uploadPath."/%/%htm%'
  4448. ORDER BY id ASC";
  4449. $res_hot = api_sql_query($sql_hot, __FILE__, __LINE__);
  4450. $row = Database::fetch_array($res_hot);
  4451. $item_title = $row['title'];
  4452. $item_description = $row['description'];
  4453. }
  4454. else
  4455. {
  4456. $item_title = '';
  4457. $item_description = '';
  4458. }
  4459. $item_title=mb_convert_encoding($item_title,$charset,$this->encoding);
  4460. $item_description=mb_convert_encoding($item_description,$charset,$this->encoding);
  4461. $return = '<div style="margin:3px 12px;">';
  4462. if($id != 0 && is_array($extra_info))
  4463. $parent = $extra_info['parent_item_id'];
  4464. else
  4465. $parent = 0;
  4466. $sql = "
  4467. SELECT *
  4468. FROM " . $tbl_lp_item . "
  4469. WHERE
  4470. lp_id = " . $this->lp_id;
  4471. $result = api_sql_query($sql, __FILE__, __LINE__);
  4472. $arrLP = array();
  4473. while($row = Database::fetch_array($result))
  4474. {
  4475. $arrLP[] = array(
  4476. 'id' => $row['id'],
  4477. 'item_type' => $row['item_type'],
  4478. 'title' => $row['title'],
  4479. 'path' => $row['path'],
  4480. 'description' => $row['description'],
  4481. 'parent_item_id' => $row['parent_item_id'],
  4482. 'previous_item_id' => $row['previous_item_id'],
  4483. 'next_item_id' => $row['next_item_id'],
  4484. 'display_order' => $row['display_order'],
  4485. 'max_score' => $row['max_score'],
  4486. 'min_score' => $row['min_score'],
  4487. 'mastery_score' => $row['mastery_score'],
  4488. 'prerequisite' => $row['prerequisite']);
  4489. }
  4490. $this->tree_array($arrLP);
  4491. $arrLP = $this->arrMenu;
  4492. unset($this->arrMenu);
  4493. if($action == 'add')
  4494. $return .= '<p class="lp_title">'.get_lang("CreateTheExercise").'&nbsp;:</p>' . "\n";
  4495. elseif($action == 'move')
  4496. $return .= '<p class="lp_title">'.get_lang("MoveTheCurrentExercise").'&nbsp;:</p>' . "\n";
  4497. else
  4498. $return .= '<p class="lp_title">'.get_lang("EditCurrentExecice").'&nbsp;:</p>' . "\n";
  4499. if(isset($_GET['edit']) && $_GET['edit'] == 'true')
  4500. {
  4501. $return .= '<div class="warning-message">';
  4502. $return .= '<p class="lp_title">'.get_lang("Warning").' !</p>';
  4503. $return .= get_lang("WarningEditingDocument");
  4504. $return .= '</div>';
  4505. }
  4506. $return .= '<form method="POST">' . "\n";
  4507. $return .= "\t" . '<table cellpadding="0" cellspacing="0" class="lp_form">' . "\n";
  4508. $return .= "\t\t" . '<tr>' . "\n";
  4509. $return .= "\t\t\t" . '<td class="label"><label for="idParent">'.get_lang("Parent").' :</label></td>' . "\n";
  4510. $return .= "\t\t\t" . '<td class="input">' . "\n";
  4511. $return .= "\t\t\t\t" . '<select id="idParent" name="parent" onchange="load_cbo(this.value);" size="1">';
  4512. $return .= "\t\t\t\t\t" . '<option class="top" value="0">' . $this->name . '</option>';
  4513. $arrHide = array($id);
  4514. for($i = 0; $i < count($arrLP); $i++)
  4515. {
  4516. if($action != 'add')
  4517. {
  4518. if(($arrLP[$i]['item_type'] == 'dokeos_module' || $arrLP[$i]['item_type'] == 'dokeos_chapter' || $arrLP[$i]['item_type'] == 'dir') && !in_array($arrLP[$i]['id'], $arrHide) && !in_array($arrLP[$i]['parent_item_id'], $arrHide))
  4519. {
  4520. $return .= "\t\t\t\t\t" . '<option ' . (($parent == $arrLP[$i]['id']) ? 'selected="selected" ' : '') . 'style="padding-left:' . ($arrLP[$i]['depth'] * 10) . 'px;" value="' . $arrLP[$i]['id'] . '">' . mb_convert_encoding($arrLP[$i]['title'],$charset,$this->encoding) . '</option>';
  4521. }
  4522. else
  4523. {
  4524. $arrHide[] = $arrLP[$i]['id'];
  4525. }
  4526. }
  4527. else
  4528. {
  4529. if($arrLP[$i]['item_type'] == 'dokeos_module' || $arrLP[$i]['item_type'] == 'dokeos_chapter' || $arrLP[$i]['item_type'] == 'dir')
  4530. $return .= "\t\t\t\t\t" . '<option ' . (($parent == $arrLP[$i]['id']) ? 'selected="selected" ' : '') . 'style="padding-left:' . ($arrLP[$i]['depth'] * 10) . 'px;" value="' . $arrLP[$i]['id'] . '">' . mb_convert_encoding($arrLP[$i]['title'],$charset,$this->encoding) . '</option>';
  4531. }
  4532. }
  4533. reset($arrLP);
  4534. $return .= "\t\t\t\t" . '</select>';
  4535. $return .= "\t\t\t" . '</td>' . "\n";
  4536. $return .= "\t\t" . '</tr>' . "\n";
  4537. $return .= "\t\t" . '<tr>' . "\n";
  4538. $return .= "\t\t\t" . '<td class="label"><label for="idPosition">'.get_lang("Position").' :</label></td>' . "\n";
  4539. $return .= "\t\t\t" . '<td class="input">' . "\n";
  4540. $return .= "\t\t\t\t" . '<select id="idPosition" name="previous" size="1">';
  4541. $return .= "\t\t\t\t\t" . '<option class="top" value="0">'.get_lang('FirstPosition').'</option>';
  4542. for($i = 0; $i < count($arrLP); $i++)
  4543. {
  4544. if($arrLP[$i]['parent_item_id'] == $parent && $arrLP[$i]['id'] != $id)
  4545. {
  4546. if($extra_info['previous_item_id'] == $arrLP[$i]['id'])
  4547. $selected = 'selected="selected" ';
  4548. elseif($action == 'add')
  4549. $selected = 'selected="selected" ';
  4550. else
  4551. $selected = '';
  4552. $return .= "\t\t\t\t\t" . '<option ' . $selected . 'value="' . $arrLP[$i]['id'] . '">'.get_lang("After").' "' . mb_convert_encoding($arrLP[$i]['title'],$charset,$this->encoding) . '"</option>';
  4553. }
  4554. }
  4555. $return .= "\t\t\t\t" . '</select>';
  4556. $return .= "\t\t\t" . '</td>' . "\n";
  4557. $return .= "\t\t" . '</tr>' . "\n";
  4558. if($action != 'move')
  4559. {
  4560. $return .= "\t\t" . '<tr>' . "\n";
  4561. $return .= "\t\t\t" . '<td class="label"><label for="idTitle">'.get_lang("Title").' :</label></td>' . "\n";
  4562. $return .= "\t\t\t" . '<td class="input"><input id="idTitle" name="title" type="text" value="' . $item_title . '" /></td>' . "\n";
  4563. $return .= "\t\t" . '</tr>' . "\n";
  4564. $id_prerequisite=0;
  4565. foreach($arrLP as $key=>$value){
  4566. if($value['id']==$id){
  4567. $id_prerequisite=$value['prerequisite'];
  4568. break;
  4569. }
  4570. }
  4571. $arrHide=array();
  4572. for($i = 0; $i < count($arrLP); $i++)
  4573. {
  4574. if($arrLP[$i]['id'] != $id && $arrLP[$i]['item_type'] != 'dokeos_chapter')
  4575. {
  4576. if($extra_info['previous_item_id'] == $arrLP[$i]['id'])
  4577. $s_selected_position=$arrLP[$i]['id'];
  4578. elseif($action == 'add')
  4579. $s_selected_position=0;
  4580. $arrHide[$arrLP[$i]['id']]['value']=mb_convert_encoding($arrLP[$i]['title'],$charset,$this->encoding);
  4581. }
  4582. }
  4583. $return .= "\t\t" . '<tr>' . "\n";
  4584. $return .= "\t\t\t" . '<td class="label"><label for="idPrerequisites">'.get_lang("Prerequisites").' :</label></td>' . "\n";
  4585. $return .= "\t\t\t" . '<td class="input"><select name="prerequisites" id="prerequisites"><option value="0">'.get_lang("NoPrerequisites").'</option>';
  4586. foreach($arrHide as $key => $value){
  4587. if($key==$s_selected_position && $action == 'add'){
  4588. $return .= '<option value="'.$key.'" selected="selected">'.$value['value'].'</option>';
  4589. }
  4590. elseif($key==$id_prerequisite && $action == 'edit'){
  4591. $return .= '<option value="'.$key.'" selected="selected">'.$value['value'].'</option>';
  4592. }
  4593. else{
  4594. $return .= '<option value="'.$key.'">'.$value['value'].'</option>';
  4595. }
  4596. }
  4597. $return .= "</select></td>";
  4598. $return .= "\t\t" . '</tr>' . "\n";
  4599. $return .= "\t\t" . '<tr>' . "\n";
  4600. //Remove temporaly the test description
  4601. //$return .= "\t\t\t" . '<td class="label"><label for="idDescription">'.get_lang("Description").' :</label></td>' . "\n";
  4602. //$return .= "\t\t\t" . '<td class="input"><textarea id="idDescription" name="description" rows="4">' . $item_description . '</textarea></td>' . "\n";
  4603. $return .= "\t\t" . '</tr>' . "\n";
  4604. }
  4605. $return .= "\t\t" . '<tr>' . "\n";
  4606. $return .= "\t\t\t" . '<td colspan="2"><input class="button" name="submit_button" type="submit" value="'.get_lang('Ok').'" /></td>' . "\n";
  4607. $return .= "\t\t" . '</tr>' . "\n";
  4608. $return .= "\t" . '</table>' . "\n";
  4609. if($action == 'move')
  4610. {
  4611. $return .= "\t" . '<input name="title" type="hidden" value="' . $item_title . '" />' . "\n";
  4612. $return .= "\t" . '<input name="description" type="hidden" value="' . $item_description . '" />' . "\n";
  4613. }
  4614. if(is_numeric($extra_info))
  4615. {
  4616. $return .= "\t" . '<input name="path" type="hidden" value="' . $extra_info . '" />' . "\n";
  4617. }
  4618. elseif(is_array($extra_info))
  4619. {
  4620. $return .= "\t" . '<input name="path" type="hidden" value="' . $extra_info['path'] . '" />' . "\n";
  4621. }
  4622. $return .= "\t" . '<input name="type" type="hidden" value="'.TOOL_HOTPOTATOES.'" />' . "\n";
  4623. $return .= "\t" . '<input name="post_time" type="hidden" value="' . time() . '" />' . "\n";
  4624. $return .= '</form>' . "\n";
  4625. $return .= '</div>' . "\n";
  4626. return $return;
  4627. }
  4628. //fin du hotpot form
  4629. /**
  4630. * Return the form to display the forum edit/add option
  4631. *
  4632. * @param string Action (add/edit)
  4633. * @param integer ID of the lp_item if already exists
  4634. * @param mixed Forum ID or title
  4635. * @return string HTML form
  4636. */
  4637. function display_forum_form($action = 'add', $id = 0, $extra_info = '')
  4638. {
  4639. global $charset;
  4640. $tbl_lp_item = Database::get_course_table('lp_item');
  4641. $tbl_forum = Database::get_course_table(TABLE_FORUM);
  4642. if($id != 0 && is_array($extra_info))
  4643. {
  4644. $item_title = stripslashes($extra_info['title']);
  4645. }
  4646. elseif(is_numeric($extra_info))
  4647. {
  4648. $sql_forum = "
  4649. SELECT
  4650. forum_title as title, forum_comment as comment
  4651. FROM " . $tbl_forum . "
  4652. WHERE forum_id = " . $extra_info;
  4653. $result = api_sql_query($sql_forum, __FILE__, __LINE__);
  4654. $row = Database::fetch_array($result);
  4655. $item_title = $row['title'];
  4656. $item_description = $row['comment'];
  4657. }
  4658. else
  4659. {
  4660. $item_title = '';
  4661. $item_description = '';
  4662. }
  4663. $item_title=mb_convert_encoding($item_title,$charset,$this->encoding);
  4664. $item_description=mb_convert_encoding($item_description,$charset,$this->encoding);
  4665. $return = '<div class="sectiontitle">';
  4666. if($id != 0 && is_array($extra_info))
  4667. $parent = $extra_info['parent_item_id'];
  4668. else
  4669. $parent = 0;
  4670. $sql = "
  4671. SELECT *
  4672. FROM " . $tbl_lp_item . "
  4673. WHERE
  4674. lp_id = " . $this->lp_id;
  4675. $result = api_sql_query($sql, __FILE__, __LINE__);
  4676. $arrLP = array();
  4677. while($row = Database::fetch_array($result))
  4678. {
  4679. $arrLP[] = array(
  4680. 'id' => $row['id'],
  4681. 'item_type' => $row['item_type'],
  4682. 'title' => $row['title'],
  4683. 'path' => $row['path'],
  4684. 'description' => $row['description'],
  4685. 'parent_item_id' => $row['parent_item_id'],
  4686. 'previous_item_id' => $row['previous_item_id'],
  4687. 'next_item_id' => $row['next_item_id'],
  4688. 'display_order' => $row['display_order'],
  4689. 'max_score' => $row['max_score'],
  4690. 'min_score' => $row['min_score'],
  4691. 'mastery_score' => $row['mastery_score'],
  4692. 'prerequisite' => $row['prerequisite']);
  4693. }
  4694. $this->tree_array($arrLP);
  4695. $arrLP = $this->arrMenu;
  4696. unset($this->arrMenu);
  4697. if($action == 'add')
  4698. $return .= get_lang("CreateTheForum").'&nbsp;:' . "\n";
  4699. elseif($action == 'move')
  4700. $return .= get_lang("MoveTheCurrentForum").'&nbsp;:' . "\n";
  4701. else
  4702. $return .= get_lang("EditCurrentForum").'&nbsp;:' . "\n";
  4703. $return .= '</div>';
  4704. $return .= '<div class="sectioncomment">';
  4705. $return .= '<form method="POST">' . "\n";
  4706. $return .= "\t" . '<table>' . "\n";
  4707. if($action != 'move')
  4708. {
  4709. $return .= "\t\t" . '<tr>' . "\n";
  4710. $return .= "\t\t\t" . '<td class="label"><label for="idTitle">'.get_lang("Title").'&nbsp;:</label></td>' . "\n";
  4711. $return .= "\t\t\t" . '<td class="input"><input id="idTitle" name="title" type="text" value="' . $item_title . '" class="learnpath_item_form" /></td>' . "\n";
  4712. $return .= "\t\t" . '</tr>' . "\n";
  4713. }
  4714. $return .= "\t\t" . '<tr>' . "\n";
  4715. $return .= "\t\t\t" . '<td class="label"><label for="idParent">'.get_lang("Parent").'&nbsp;:</label></td>' . "\n";
  4716. $return .= "\t\t\t" . '<td class="input">' . "\n";
  4717. $return .= "\t\t\t\t" . '<select id="idParent" name="parent" onchange="load_cbo(this.value);" class="learnpath_item_form" size="1">';
  4718. $return .= "\t\t\t\t\t" . '<option class="top" value="0">' . $this->name . '</option>';
  4719. $arrHide = array($id);
  4720. for($i = 0; $i < count($arrLP); $i++)
  4721. {
  4722. if($action != 'add')
  4723. {
  4724. if(($arrLP[$i]['item_type'] == 'dokeos_module' || $arrLP[$i]['item_type'] == 'dokeos_chapter' || $arrLP[$i]['item_type'] == 'dir') && !in_array($arrLP[$i]['id'], $arrHide) && !in_array($arrLP[$i]['parent_item_id'], $arrHide))
  4725. {
  4726. $return .= "\t\t\t\t\t" . '<option ' . (($parent == $arrLP[$i]['id']) ? 'selected="selected" ' : '') . 'style="padding-left:' . ($arrLP[$i]['depth'] * 10) . 'px;" value="' . $arrLP[$i]['id'] . '">' . mb_convert_encoding($arrLP[$i]['title'],$charset,$this->encoding) . '</option>';
  4727. }
  4728. else
  4729. {
  4730. $arrHide[] = $arrLP[$i]['id'];
  4731. }
  4732. }
  4733. else
  4734. {
  4735. if($arrLP[$i]['item_type'] == 'dokeos_module' || $arrLP[$i]['item_type'] == 'dokeos_chapter' || $arrLP[$i]['item_type'] == 'dir')
  4736. $return .= "\t\t\t\t\t" . '<option ' . (($parent == $arrLP[$i]['id']) ? 'selected="selected" ' : '') . 'style="padding-left:' . ($arrLP[$i]['depth'] * 10) . 'px;" value="' . $arrLP[$i]['id'] . '">' . mb_convert_encoding($arrLP[$i]['title'],$charset,$this->encoding) . '</option>';
  4737. }
  4738. }
  4739. reset($arrLP);
  4740. $return .= "\t\t\t\t" . '</select>';
  4741. $return .= "\t\t\t" . '</td>' . "\n";
  4742. $return .= "\t\t" . '</tr>' . "\n";
  4743. $return .= "\t\t" . '<tr>' . "\n";
  4744. $return .= "\t\t\t" . '<td class="label"><label for="idPosition">'.get_lang("Position").'&nbsp;:</label></td>' . "\n";
  4745. $return .= "\t\t\t" . '<td class="input">' . "\n";
  4746. $return .= "\t\t\t\t" . '<select id="idPosition" name="previous" size="1" class="learnpath_item_form">';
  4747. $return .= "\t\t\t\t\t" . '<option class="top" value="0">'.get_lang('FirstPosition').'</option>';
  4748. for($i = 0; $i < count($arrLP); $i++)
  4749. {
  4750. if($arrLP[$i]['parent_item_id'] == $parent && $arrLP[$i]['id'] != $id)
  4751. {
  4752. if($extra_info['previous_item_id'] == $arrLP[$i]['id'])
  4753. $selected = 'selected="selected" ';
  4754. elseif($action == 'add')
  4755. $selected = 'selected="selected" ';
  4756. else
  4757. $selected = '';
  4758. $return .= "\t\t\t\t\t" . '<option ' . $selected . 'value="' . $arrLP[$i]['id'] . '">'.get_lang("After").' "' . mb_convert_encoding($arrLP[$i]['title'],$charset,$this->encoding) . '"</option>';
  4759. }
  4760. }
  4761. $return .= "\t\t\t\t" . '</select>';
  4762. $return .= "\t\t\t" . '</td>' . "\n";
  4763. $return .= "\t\t" . '</tr>' . "\n";
  4764. if($action != 'move')
  4765. {
  4766. $return .= "\t\t" . '<tr>' . "\n";
  4767. //Remove temporaly the test description
  4768. //$return .= "\t\t\t" . '<td class="label"><label for="idDescription">'.get_lang("Description").' :</label></td>' . "\n";
  4769. //$return .= "\t\t\t" . '<td class="input"><textarea id="idDescription" name="description" rows="4">' . $item_description . '</textarea></td>' . "\n";
  4770. $return .= "\t\t" . '</tr>' . "\n";
  4771. $id_prerequisite=0;
  4772. foreach($arrLP as $key=>$value){
  4773. if($value['id']==$id){
  4774. $id_prerequisite=$value['prerequisite'];
  4775. break;
  4776. }
  4777. }
  4778. $arrHide=array();
  4779. for($i = 0; $i < count($arrLP); $i++)
  4780. {
  4781. if($arrLP[$i]['id'] != $id && $arrLP[$i]['item_type'] != 'dokeos_chapter')
  4782. {
  4783. if($extra_info['previous_item_id'] == $arrLP[$i]['id'])
  4784. $s_selected_position=$arrLP[$i]['id'];
  4785. elseif($action == 'add')
  4786. $s_selected_position=0;
  4787. $arrHide[$arrLP[$i]['id']]['value']=mb_convert_encoding($arrLP[$i]['title'],$charset,$this->encoding);
  4788. }
  4789. }
  4790. $return .= "\t\t" . '<tr>' . "\n";
  4791. $return .= "\t\t\t" . '<td class="label"><label for="idPrerequisites">'.get_lang('Prerequisites').'&nbsp;:</label></td>' . "\n";
  4792. $return .= "\t\t\t" . '<td class="input"><select name="prerequisites" id="prerequisites" class="learnpath_item_form"><option value="0">'.get_lang("NoPrerequisites").'</option>';
  4793. foreach($arrHide as $key => $value){
  4794. if($key==$s_selected_position && $action == 'add'){
  4795. $return .= '<option value="'.$key.'" selected="selected">'.$value['value'].'</option>';
  4796. }
  4797. elseif($key==$id_prerequisite && $action == 'edit'){
  4798. $return .= '<option value="'.$key.'" selected="selected">'.$value['value'].'</option>';
  4799. }
  4800. else{
  4801. $return .= '<option value="'.$key.'">'.$value['value'].'</option>';
  4802. }
  4803. }
  4804. $return .= "</select></td>";
  4805. $return .= "\t\t" . '</tr>' . "\n";
  4806. }
  4807. $return .= "\t\t" . '<tr>' . "\n";
  4808. $return .= "\t\t\t" . '<td colspan="2"><input class="button" name="submit_button" type="submit" value="'.get_lang('Ok').'" /></td>' . "\n";
  4809. $return .= "\t\t" . '</tr>' . "\n";
  4810. $return .= "\t" . '</table>' . "\n";
  4811. if($action == 'move')
  4812. {
  4813. $return .= "\t" . '<input name="title" type="hidden" value="' . $item_title . '" />' . "\n";
  4814. $return .= "\t" . '<input name="description" type="hidden" value="' . $item_description . '" />' . "\n";
  4815. }
  4816. if(is_numeric($extra_info))
  4817. {
  4818. $return .= "\t" . '<input name="path" type="hidden" value="' . $extra_info . '" />' . "\n";
  4819. }
  4820. elseif(is_array($extra_info))
  4821. {
  4822. $return .= "\t" . '<input name="path" type="hidden" value="' . $extra_info['path'] . '" />' . "\n";
  4823. }
  4824. $return .= "\t" . '<input name="type" type="hidden" value="'.TOOL_FORUM.'" />' . "\n";
  4825. $return .= "\t" . '<input name="post_time" type="hidden" value="' . time() . '" />' . "\n";
  4826. $return .= '</form>' . "\n";
  4827. $return .= '</div>' . "\n";
  4828. return $return;
  4829. }
  4830. /**
  4831. * Return HTML form to add/edit forum threads
  4832. * @param string Action (add/edit)
  4833. * @param integer Item ID if already exists in learning path
  4834. * @param mixed Extra information (thread ID if integer)
  4835. * @return string HTML form
  4836. */
  4837. function display_thread_form($action = 'add', $id = 0, $extra_info = '')
  4838. {
  4839. global $charset;
  4840. echo '
  4841. <style>
  4842. div.row div.label {
  4843. width:110px;
  4844. }
  4845. div.row div.formw {
  4846. width: 82%;
  4847. }
  4848. </style>';
  4849. $tbl_lp_item = Database::get_course_table('lp_item');
  4850. $tbl_forum = Database::get_course_table(TABLE_FORUM_THREAD);
  4851. if($id != 0 && is_array($extra_info))
  4852. {
  4853. $item_title = stripslashes($extra_info['title']);
  4854. }
  4855. elseif(is_numeric($extra_info))
  4856. {
  4857. $sql_forum = "
  4858. SELECT
  4859. thread_title as title
  4860. FROM " . $tbl_forum . "
  4861. WHERE thread_id = " . $extra_info;
  4862. $result = api_sql_query($sql_forum, __FILE__, __LINE__);
  4863. $row = Database::fetch_array($result);
  4864. $item_title = $row['title'];
  4865. $item_description = '';
  4866. }
  4867. else
  4868. {
  4869. $item_title = '';
  4870. $item_description = '';
  4871. }
  4872. $item_title=mb_convert_encoding($item_title,$charset,$this->encoding);
  4873. $item_description=mb_convert_encoding($item_description,$charset,$this->encoding);
  4874. $return = '<div style="margin:3px 12px;">';
  4875. if($id != 0 && is_array($extra_info))
  4876. $parent = $extra_info['parent_item_id'];
  4877. else
  4878. $parent = 0;
  4879. $sql = "
  4880. SELECT *
  4881. FROM " . $tbl_lp_item . "
  4882. WHERE
  4883. lp_id = " . $this->lp_id;
  4884. $result = api_sql_query($sql, __FILE__, __LINE__);
  4885. $arrLP = array();
  4886. while($row = Database::fetch_array($result))
  4887. {
  4888. $arrLP[] = array(
  4889. 'id' => $row['id'],
  4890. 'item_type' => $row['item_type'],
  4891. 'title' => $row['title'],
  4892. 'path' => $row['path'],
  4893. 'description' => $row['description'],
  4894. 'parent_item_id' => $row['parent_item_id'],
  4895. 'previous_item_id' => $row['previous_item_id'],
  4896. 'next_item_id' => $row['next_item_id'],
  4897. 'display_order' => $row['display_order'],
  4898. 'max_score' => $row['max_score'],
  4899. 'min_score' => $row['min_score'],
  4900. 'mastery_score' => $row['mastery_score'],
  4901. 'prerequisite' => $row['prerequisite']);
  4902. }
  4903. $this->tree_array($arrLP);
  4904. $arrLP = $this->arrMenu;
  4905. unset($this->arrMenu);
  4906. if($action == 'add')
  4907. $return .= '<p class="lp_title">'.get_lang("CreateTheForum").'&nbsp;:</p>' . "\n";
  4908. elseif($action == 'move')
  4909. $return .= '<p class="lp_title">'.get_lang("MoveTheCurrentForum").'&nbsp;:</p>' . "\n";
  4910. else
  4911. $return .= '<p class="lp_title">'.get_lang("EditCurrentForum").'&nbsp;:</p>' . "\n";
  4912. $return .= '<form method="POST">' . "\n";
  4913. $return .= "\t" . '<table cellpadding="0" cellspacing="0" class="lp_form">' . "\n";
  4914. $return .= "\t\t" . '<tr>' . "\n";
  4915. $return .= "\t\t\t" . '<td class="label"><label for="idParent">'.get_lang("Parent").'&nbsp;:</label></td>' . "\n";
  4916. $return .= "\t\t\t" . '<td class="input">' . "\n";
  4917. $return .= "\t\t\t\t" . '<select id="idParent" name="parent" onchange="load_cbo(this.value);" size="1">';
  4918. $return .= "\t\t\t\t\t" . '<option class="top" value="0">' . $this->name . '</option>';
  4919. $arrHide = array($id);
  4920. for($i = 0; $i < count($arrLP); $i++)
  4921. {
  4922. if($action != 'add')
  4923. {
  4924. if(($arrLP[$i]['item_type'] == 'dokeos_module' || $arrLP[$i]['item_type'] == 'dokeos_chapter' || $arrLP[$i]['item_type'] == 'dir') && !in_array($arrLP[$i]['id'], $arrHide) && !in_array($arrLP[$i]['parent_item_id'], $arrHide))
  4925. {
  4926. $return .= "\t\t\t\t\t" . '<option ' . (($parent == $arrLP[$i]['id']) ? 'selected="selected" ' : '') . 'style="padding-left:' . ($arrLP[$i]['depth'] * 10) . 'px;" value="' . $arrLP[$i]['id'] . '">' . mb_convert_encoding($arrLP[$i]['title'],$charset,$this->encoding) . '</option>';
  4927. }
  4928. else
  4929. {
  4930. $arrHide[] = $arrLP[$i]['id'];
  4931. }
  4932. }
  4933. else
  4934. {
  4935. if($arrLP[$i]['item_type'] == 'dokeos_module' || $arrLP[$i]['item_type'] == 'dokeos_chapter' || $arrLP[$i]['item_type'] == 'dir')
  4936. $return .= "\t\t\t\t\t" . '<option ' . (($parent == $arrLP[$i]['id']) ? 'selected="selected" ' : '') . 'style="padding-left:' . ($arrLP[$i]['depth'] * 10) . 'px;" value="' . $arrLP[$i]['id'] . '">' . mb_convert_encoding($arrLP[$i]['title'],$charset,$this->encoding) . '</option>';
  4937. }
  4938. }
  4939. if ($arrLP!=null) {
  4940. reset($arrLP);
  4941. }
  4942. $return .= "\t\t\t\t" . '</select>';
  4943. $return .= "\t\t\t" . '</td>' . "\n";
  4944. $return .= "\t\t" . '</tr>' . "\n";
  4945. $return .= "\t\t" . '<tr>' . "\n";
  4946. $return .= "\t\t\t" . '<td class="label"><label for="idPosition">'.get_lang("Position").'&nbsp;:</label></td>' . "\n";
  4947. $return .= "\t\t\t" . '<td class="input">' . "\n";
  4948. $return .= "\t\t\t\t" . '<select id="idPosition" name="previous" size="1">';
  4949. $return .= "\t\t\t\t\t" . '<option class="top" value="0">'.get_lang('FirstPosition').'</option>';
  4950. for($i = 0; $i < count($arrLP); $i++)
  4951. {
  4952. if($arrLP[$i]['parent_item_id'] == $parent && $arrLP[$i]['id'] != $id)
  4953. {
  4954. if($extra_info['previous_item_id'] == $arrLP[$i]['id'])
  4955. $selected = 'selected="selected" ';
  4956. elseif($action == 'add')
  4957. $selected = 'selected="selected" ';
  4958. else
  4959. $selected = '';
  4960. $return .= "\t\t\t\t\t" . '<option ' . $selected . 'value="' . $arrLP[$i]['id'] . '">'.get_lang("After").' "' . mb_convert_encoding($arrLP[$i]['title'],$charset,$this->encoding) . '"</option>';
  4961. }
  4962. }
  4963. $return .= "\t\t\t\t" . '</select>';
  4964. $return .= "\t\t\t" . '</td>' . "\n";
  4965. $return .= "\t\t" . '</tr>' . "\n";
  4966. if($action != 'move')
  4967. {
  4968. $return .= "\t\t" . '<tr>' . "\n";
  4969. $return .= "\t\t\t" . '<td class="label"><label for="idTitle">'.get_lang("Title").'&nbsp;:</label></td>' . "\n";
  4970. $return .= "\t\t\t" . '<td class="input"><input id="idTitle" name="title" type="text" value="' . $item_title . '" /></td>' . "\n";
  4971. $return .= "\t\t" . '</tr>' . "\n";
  4972. $return .= "\t\t" . '<tr>' . "\n";
  4973. //Remove temporaly the test description
  4974. //$return .= "\t\t\t" . '<td class="label"><label for="idDescription">'.get_lang("Description").' :</label></td>' . "\n";
  4975. //$return .= "\t\t\t" . '<td class="input"><textarea id="idDescription" name="description" rows="4">' . $item_description . '</textarea></td>' . "\n";
  4976. $return .= "\t\t" . '</tr>' . "\n";
  4977. $id_prerequisite=0;
  4978. if ($arrLP!=null) {
  4979. foreach($arrLP as $key=>$value){
  4980. if($value['id']==$id){
  4981. $id_prerequisite=$value['prerequisite'];
  4982. break;
  4983. }
  4984. }
  4985. }
  4986. $arrHide=array();
  4987. for($i = 0; $i < count($arrLP); $i++)
  4988. {
  4989. if($arrLP[$i]['id'] != $id && $arrLP[$i]['item_type'] != 'dokeos_chapter')
  4990. {
  4991. if($extra_info['previous_item_id'] == $arrLP[$i]['id'])
  4992. $s_selected_position=$arrLP[$i]['id'];
  4993. elseif($action == 'add')
  4994. $s_selected_position=0;
  4995. $arrHide[$arrLP[$i]['id']]['value']=mb_convert_encoding($arrLP[$i]['title'],$charset,$this->encoding);
  4996. }
  4997. }
  4998. $return .= "\t\t" . '<tr>' . "\n";
  4999. $return .= "\t\t\t" . '<td class="label"><label for="idPrerequisites">'.get_lang("Prerequisites").'&nbsp;:</label></td>' . "\n";
  5000. $return .= "\t\t\t" . '<td class="input"><select name="prerequisites" id="prerequisites"><option value="0">'.get_lang("NoPrerequisites").'</option>';
  5001. foreach($arrHide as $key => $value){
  5002. if($key==$s_selected_position && $action == 'add'){
  5003. $return .= '<option value="'.$key.'" selected="selected">'.$value['value'].'</option>';
  5004. }
  5005. elseif($key==$id_prerequisite && $action == 'edit'){
  5006. $return .= '<option value="'.$key.'" selected="selected">'.$value['value'].'</option>';
  5007. }
  5008. else{
  5009. $return .= '<option value="'.$key.'">'.$value['value'].'</option>';
  5010. }
  5011. }
  5012. $return .= "</select></td>";
  5013. $return .= "\t\t" . '</tr>' . "\n";
  5014. }
  5015. $return .= "\t\t" . '<tr>' . "\n";
  5016. $return .= "\t\t\t" . '<td colspan="2"><input class="button" name="submit_button" type="submit" value="'.get_lang('Ok').'" /></td>' . "\n";
  5017. $return .= "\t\t" . '</tr>' . "\n";
  5018. $return .= "\t" . '</table>' . "\n";
  5019. if($action == 'move')
  5020. {
  5021. $return .= "\t" . '<input name="title" type="hidden" value="' . $item_title . '" />' . "\n";
  5022. $return .= "\t" . '<input name="description" type="hidden" value="' . $item_description . '" />' . "\n";
  5023. }
  5024. if(is_numeric($extra_info))
  5025. {
  5026. $return .= "\t" . '<input name="path" type="hidden" value="' . $extra_info . '" />' . "\n";
  5027. }
  5028. elseif(is_array($extra_info))
  5029. {
  5030. $return .= "\t" . '<input name="path" type="hidden" value="' . $extra_info['path'] . '" />' . "\n";
  5031. }
  5032. $return .= "\t" . '<input name="type" type="hidden" value="'.TOOL_THREAD.'" />' . "\n";
  5033. $return .= "\t" . '<input name="post_time" type="hidden" value="' . time() . '" />' . "\n";
  5034. $return .= '</form>' . "\n";
  5035. $return .= '</div>' . "\n";
  5036. return $return;
  5037. }
  5038. /**
  5039. * Return the HTML form to display an item (generally a section/module item)
  5040. *
  5041. * @param string Item type (module/dokeos_module)
  5042. * @param string Title (optional, only when creating)
  5043. * @param string Action ('add'/'edit')
  5044. * @param integer lp_item ID
  5045. * @param mixed Extra info
  5046. * @return string HTML form
  5047. */
  5048. function display_item_form($item_type, $title = '', $action = 'add', $id = 0, $extra_info = 'new')
  5049. {
  5050. global $_course;
  5051. global $charset;
  5052. $tbl_lp_item = Database::get_course_table('lp_item');
  5053. if($id != 0 && is_array($extra_info))
  5054. {
  5055. $item_title = $extra_info['title'];
  5056. $item_description = $extra_info['description'];
  5057. $item_path = api_get_path(WEB_COURSE_PATH) . $_course['path'].'/scorm/'.$this->path.'/'.stripslashes($extra_info['path']);
  5058. }
  5059. else
  5060. {
  5061. $item_title = '';
  5062. $item_description = '';
  5063. }
  5064. $return = '<div class="sectiontitle">';
  5065. if($id != 0 && is_array($extra_info))
  5066. $parent = $extra_info['parent_item_id'];
  5067. else
  5068. $parent = 0;
  5069. $sql = "
  5070. SELECT *
  5071. FROM " . $tbl_lp_item . "
  5072. WHERE lp_id = " . $this->lp_id. " AND id != " . $id. " ";
  5073. if($item_type == 'module')
  5074. $sql .= " AND parent_item_id = 0";
  5075. $result = api_sql_query($sql, __FILE__, __LINE__);
  5076. $arrLP = array();
  5077. while($row = Database::fetch_array($result))
  5078. {
  5079. $arrLP[] = array(
  5080. 'id' => $row['id'],
  5081. 'item_type' => $row['item_type'],
  5082. 'title' => $row['title'],
  5083. 'path' => $row['path'],
  5084. 'description' => $row['description'],
  5085. 'parent_item_id' => $row['parent_item_id'],
  5086. 'previous_item_id' => $row['previous_item_id'],
  5087. 'next_item_id' => $row['next_item_id'],
  5088. 'max_score' => $row['max_score'],
  5089. 'min_score' => $row['min_score'],
  5090. 'mastery_score' => $row['mastery_score'],
  5091. 'prerequisite' => $row['prerequisite'],
  5092. 'display_order' => $row['display_order']);
  5093. }
  5094. $this->tree_array($arrLP);
  5095. $arrLP = $this->arrMenu;
  5096. unset($this->arrMenu);
  5097. $return .= $title . "\n";
  5098. $return .= '</div>';
  5099. $return .= '<div class="sectioncomment">';
  5100. require_once (api_get_path(LIBRARY_PATH).'formvalidator/FormValidator.class.php');
  5101. $form = new FormValidator('form','POST',api_get_self()."?".$_SERVER["QUERY_STRING"]);
  5102. $defaults["title"]=mb_convert_encoding($item_title,$charset,$this->encoding);
  5103. $defaults["description"]=mb_convert_encoding($item_description,$charset,$this->encoding);
  5104. $form->addElement('html',$return);
  5105. //$arrHide = array($id);
  5106. $arrHide[0]['value']=$this->name;
  5107. $arrHide[0]['padding']=3;
  5108. if($item_type != 'module' && $item_type != 'dokeos_module')
  5109. {
  5110. for($i = 0; $i < count($arrLP); $i++)
  5111. {
  5112. if($action != 'add')
  5113. {
  5114. if(($arrLP[$i]['item_type'] == 'dokeos_module' || $arrLP[$i]['item_type'] == 'dokeos_chapter' || $arrLP[$i]['item_type'] == 'dir') && !in_array($arrLP[$i]['id'], $arrHide) && !in_array($arrLP[$i]['parent_item_id'], $arrHide))
  5115. {
  5116. $arrHide[$arrLP[$i]['id']]['value']=mb_convert_encoding($arrLP[$i]['title'],$charset,$this->encoding);
  5117. $arrHide[$arrLP[$i]['id']]['padding']=3+ $arrLP[$i]['depth'] * 10;
  5118. if($parent == $arrLP[$i]['id'])
  5119. {
  5120. $s_selected_parent=$arrHide[$arrLP[$i]['id']];
  5121. }
  5122. }
  5123. }
  5124. else
  5125. {
  5126. if($arrLP[$i]['item_type'] == 'dokeos_module' || $arrLP[$i]['item_type'] == 'dokeos_chapter' || $arrLP[$i]['item_type'] == 'dir')
  5127. {
  5128. $arrHide[$arrLP[$i]['id']]['value']=mb_convert_encoding($arrLP[$i]['title'],$charset,$this->encoding);
  5129. $arrHide[$arrLP[$i]['id']]['padding']=3+ $arrLP[$i]['depth'] * 10;
  5130. if($parent == $arrLP[$i]['id'])
  5131. {
  5132. $s_selected_parent=$arrHide[$arrLP[$i]['id']];
  5133. }
  5134. }
  5135. }
  5136. }
  5137. if($action != 'move')
  5138. {
  5139. $form->addElement('text','title', get_lang('Title').'&nbsp;:','id="idTitle" class="learnpath_chapter_form"');
  5140. //$form->addElement('textarea','description',get_lang("Description").' :', 'id="idDescription"');
  5141. }
  5142. else
  5143. {
  5144. $form->addElement('hidden','title');
  5145. }
  5146. $parent_select = &$form->addElement('select', 'parent', get_lang("Parent")."&nbsp;:", '', 'class="learnpath_chapter_form" id="Parent" onchange="load_cbo(this.value);"');
  5147. foreach($arrHide as $key => $value)
  5148. {
  5149. $parent_select->addOption($value['value'],$key,'style="padding-left:'.$value['padding'].'px;"');
  5150. }
  5151. $parent_select -> setSelected($s_selected_parent);
  5152. }
  5153. if(is_array($arrLP)) { reset($arrLP); }
  5154. $arrHide=array();
  5155. //POSITION
  5156. for($i = 0; $i < count($arrLP); $i++)
  5157. {
  5158. if($arrLP[$i]['parent_item_id'] == $parent && $arrLP[$i]['id'] != $id)
  5159. {
  5160. if($extra_info['previous_item_id'] == $arrLP[$i]['id'])
  5161. $s_selected_position=$arrLP[$i]['id'];
  5162. elseif($action == 'add')
  5163. $s_selected_position=$arrLP[$i]['id'];
  5164. $arrHide[$arrLP[$i]['id']]['value']=get_lang("After").' "' . mb_convert_encoding($arrLP[$i]['title'],$charset,$this->encoding);
  5165. }
  5166. }
  5167. $position = &$form->addElement('select', 'previous', get_lang("Position")."&nbsp;:", '', 'id="idPosition" class="learnpath_chapter_form"');
  5168. $position->addOption(get_lang('FirstPosition'),0,'style="padding-left:'.$value['padding'].'px;"');
  5169. foreach($arrHide as $key => $value)
  5170. {
  5171. $position->addOption($value['value'],$key,'style="padding-left:'.$value['padding'].'px;"');
  5172. }
  5173. if(!empty($s_selected_position)) { $position->setSelected($s_selected_position); }
  5174. if(is_array($arrLP)) { reset($arrLP); }
  5175. $form->addElement('submit', 'submit_button', get_lang('Ok'));
  5176. if($item_type == 'module' || $item_type == 'dokeos_module')
  5177. {
  5178. $form->addElement('hidden', 'parent', '0');
  5179. }
  5180. $extension = pathinfo($item_path, PATHINFO_EXTENSION);
  5181. if(($item_type=='asset' || $item_type=='sco') && ($extension == 'html' || $extension == 'htm'))
  5182. {
  5183. if($item_type=='sco')
  5184. {
  5185. $form->addElement('html','<script type="text/javascript">alert("'.get_lang('WarningWhenEditingScorm').'")</script>');
  5186. }
  5187. $renderer = $form->defaultRenderer();
  5188. $renderer->setElementTemplate('<br />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;{label}<br />{element}','content_lp');
  5189. $form->addElement('html_editor','content_lp','');
  5190. //$form->addElement('html_editor','content_lp','');
  5191. $defaults["content_lp"]=file_get_contents($item_path);
  5192. }
  5193. $form->addElement('hidden', 'type', 'dokeos_'.$item_type);
  5194. $form->addElement('hidden', 'post_time', time());
  5195. $form->setDefaults($defaults);
  5196. $form->addElement('html','</div>');
  5197. return $form->return_form();
  5198. }
  5199. /**
  5200. * Returns the form to update or create a document
  5201. *
  5202. * @param string Action (add/edit)
  5203. * @param integer ID of the lp_item (if already exists)
  5204. * @param mixed Integer if document ID, string if info ('new')
  5205. * @return string HTML form
  5206. */
  5207. function display_document_form($action = 'add', $id = 0, $extra_info = 'new')
  5208. {
  5209. global $charset;
  5210. $tbl_lp_item = Database::get_course_table('lp_item');
  5211. $tbl_doc = Database::get_course_table(TABLE_DOCUMENT);
  5212. $path_parts = pathinfo($extra_info['dir']);
  5213. $no_display_edit_textarea=false;
  5214. //If action==edit document
  5215. //We don't display the document form if it's not an editable document (html or txt file)
  5216. if($action=="edit"){
  5217. if(is_array($extra_info)){
  5218. if($path_parts['extension']!="txt" && $path_parts['extension']!="html"){
  5219. $no_display_edit_textarea=true;
  5220. }
  5221. }
  5222. }
  5223. $no_display_add=false;
  5224. //If action==add an existing document
  5225. //We don't display the document form if it's not an editable document (html or txt file)
  5226. if($action=="add"){
  5227. if(is_numeric($extra_info)){
  5228. $sql_doc = "SELECT path FROM " . $tbl_doc . "WHERE id = " . $extra_info;
  5229. $result=api_sql_query($sql_doc, __FILE__, __LINE__);
  5230. $path_file=Database::result($result,0,0);
  5231. $path_parts = pathinfo($path_file);
  5232. if($path_parts['extension']!="txt" && $path_parts['extension']!="html"){
  5233. $no_display_add=true;
  5234. }
  5235. }
  5236. }
  5237. if($id != 0 && is_array($extra_info))
  5238. {
  5239. $item_title = stripslashes($extra_info['title']);
  5240. $item_description = stripslashes($extra_info['description']);
  5241. $item_terms = stripslashes($extra_info['terms']);
  5242. if(empty($item_title))
  5243. {
  5244. $path_parts = pathinfo($extra_info['path']);
  5245. $item_title = stripslashes($path_parts['filename']);
  5246. }
  5247. }
  5248. elseif(is_numeric($extra_info))
  5249. {
  5250. $sql_doc = "
  5251. SELECT path, title
  5252. FROM " . $tbl_doc . "
  5253. WHERE id = " . $extra_info;
  5254. $result = api_sql_query($sql_doc, __FILE__, __LINE__);
  5255. $row = Database::fetch_array($result);
  5256. $explode = explode('.', $row['title']);
  5257. if(count($explode)>1){
  5258. for($i = 0; $i < count($explode) - 1; $i++)
  5259. $item_title .= $explode[$i];
  5260. }
  5261. else{
  5262. $item_title=$row['title'];
  5263. }
  5264. $item_title = str_replace('_', ' ', $item_title);
  5265. if(empty($item_title))
  5266. {
  5267. $path_parts = pathinfo($row['path']);
  5268. $item_title = stripslashes($path_parts['filename']);
  5269. }
  5270. }
  5271. else
  5272. {
  5273. $item_title = '';
  5274. $item_description = '';
  5275. }
  5276. $return = '<div class="sectiontitle">';
  5277. if($id != 0 && is_array($extra_info))
  5278. $parent = $extra_info['parent_item_id'];
  5279. else
  5280. $parent = 0;
  5281. $sql = "
  5282. SELECT *
  5283. FROM " . $tbl_lp_item . "
  5284. WHERE
  5285. lp_id = " . $this->lp_id;
  5286. $result = api_sql_query($sql, __FILE__, __LINE__);
  5287. $arrLP = array();
  5288. while($row = Database::fetch_array($result))
  5289. {
  5290. $arrLP[] = array(
  5291. 'id' => $row['id'],
  5292. 'item_type' => $row['item_type'],
  5293. 'title' => $row['title'],
  5294. 'path' => $row['path'],
  5295. 'description' => $row['description'],
  5296. 'parent_item_id' => $row['parent_item_id'],
  5297. 'previous_item_id' => $row['previous_item_id'],
  5298. 'next_item_id' => $row['next_item_id'],
  5299. 'display_order' => $row['display_order'],
  5300. 'max_score' => $row['max_score'],
  5301. 'min_score' => $row['min_score'],
  5302. 'mastery_score' => $row['mastery_score'],
  5303. 'prerequisite' => $row['prerequisite']);
  5304. }
  5305. $this->tree_array($arrLP);
  5306. $arrLP = $this->arrMenu;
  5307. unset($this->arrMenu);
  5308. if($action == 'add')
  5309. {
  5310. $return .= get_lang("CreateTheDocument") . "\n";
  5311. }
  5312. elseif($action == 'move')
  5313. {
  5314. $return .= get_lang("MoveTheCurrentDocument") . "\n";
  5315. }
  5316. else
  5317. {
  5318. $return .= get_lang("EditTheCurrentDocument") . "\n";
  5319. }
  5320. $return .= '</div>';
  5321. if(isset($_GET['edit']) && $_GET['edit'] == 'true')
  5322. {
  5323. $return .= '<div class="warning-message">';
  5324. $return .= '<strong>'.get_lang("Warning").' !</strong><br />';
  5325. $return .= get_lang("WarningEditingDocument");
  5326. $return .= '</div>';
  5327. }
  5328. /*
  5329. if($no_display_add==true){
  5330. $return .= '<div class="warning-message">';
  5331. $return .= get_lang("CantEditDocument");
  5332. $return .= '</div>';
  5333. return $return;
  5334. }
  5335. */
  5336. require_once (api_get_path(LIBRARY_PATH).'formvalidator/FormValidator.class.php');
  5337. $form = new FormValidator('form','POST',api_get_self()."?".$_SERVER["QUERY_STRING"],'','enctype="multipart/form-data"');
  5338. $defaults["title"] = html_entity_decode($item_title);
  5339. $defaults["title"]=mb_convert_encoding($defaults["title"],$charset,$this->encoding);
  5340. if(empty($defaults["title"]))
  5341. {
  5342. $defaults["title"] = html_entity_decode($item_title);
  5343. }
  5344. $defaults["description"]=mb_convert_encoding($item_description,$charset,$this->encoding);
  5345. $form->addElement('html',$return);
  5346. if($action != 'move')
  5347. {
  5348. $form->addElement('text','title', get_lang('Title').'&nbsp;:','id="idTitle" class="learnpath_item_form"');
  5349. }
  5350. //$arrHide = array($id);
  5351. $arrHide[0]['value']=$this->name;
  5352. $arrHide[0]['padding']=3;
  5353. for($i = 0; $i < count($arrLP); $i++)
  5354. {
  5355. if($action != 'add'){
  5356. if(($arrLP[$i]['item_type'] == 'dokeos_module' || $arrLP[$i]['item_type'] == 'dokeos_chapter' || $arrLP[$i]['item_type'] == 'dir') && !in_array($arrLP[$i]['id'], $arrHide) && !in_array($arrLP[$i]['parent_item_id'], $arrHide)){
  5357. $arrHide[$arrLP[$i]['id']]['value']=mb_convert_encoding($arrLP[$i]['title'],$charset,$this->encoding);
  5358. $arrHide[$arrLP[$i]['id']]['padding']=3+ $arrLP[$i]['depth'] * 10;
  5359. if($parent == $arrLP[$i]['id']){
  5360. $s_selected_parent=$arrHide[$arrLP[$i]['id']];
  5361. }
  5362. }
  5363. }
  5364. else{
  5365. if($arrLP[$i]['item_type'] == 'dokeos_module' || $arrLP[$i]['item_type'] == 'dokeos_chapter' || $arrLP[$i]['item_type'] == 'dir'){
  5366. $arrHide[$arrLP[$i]['id']]['value']=mb_convert_encoding($arrLP[$i]['title'],$charset,$this->encoding);
  5367. $arrHide[$arrLP[$i]['id']]['padding']=3+ $arrLP[$i]['depth'] * 10;
  5368. if($parent == $arrLP[$i]['id']){
  5369. $s_selected_parent=$arrHide[$arrLP[$i]['id']];
  5370. }
  5371. }
  5372. }
  5373. }
  5374. $parent_select = &$form->addElement('select', 'parent', get_lang("Parent")."&nbsp;:", '', 'class="learnpath_item_form" onchange="load_cbo(this.value);"');
  5375. foreach($arrHide as $key => $value)
  5376. {
  5377. $parent_select->addOption($value['value'],$key,'style="padding-left:'.$value['padding'].'px;"');
  5378. }
  5379. $parent_select -> setSelected($parent);
  5380. if(is_array($arrLP))
  5381. {
  5382. reset($arrLP);
  5383. }
  5384. $arrHide=array();
  5385. //POSITION
  5386. for($i = 0; $i < count($arrLP); $i++)
  5387. {
  5388. if($arrLP[$i]['parent_item_id'] == $parent && $arrLP[$i]['id'] != $id)
  5389. {
  5390. if($extra_info['previous_item_id'] == $arrLP[$i]['id'])
  5391. $s_selected_position=$arrLP[$i]['id'];
  5392. elseif($action == 'add')
  5393. $s_selected_position=$arrLP[$i]['id'];
  5394. $arrHide[$arrLP[$i]['id']]['value']=get_lang("After").' "' . mb_convert_encoding($arrLP[$i]['title'],$charset,$this->encoding).'"';
  5395. }
  5396. }
  5397. $position = &$form->addElement('select', 'previous', get_lang("Position")."&nbsp;:", '', 'id="idPosition" class="learnpath_item_form"');
  5398. $position->addOption(get_lang("FirstPosition"),0);
  5399. foreach($arrHide as $key => $value)
  5400. {
  5401. $position->addOption($value['value'],$key,'style="padding-left:'.$value['padding'].'px;"');
  5402. }
  5403. $position -> setSelected($s_selected_position);
  5404. if(is_array($arrLP))
  5405. {
  5406. reset($arrLP);
  5407. }
  5408. if($action != 'move')
  5409. {
  5410. $id_prerequisite=0;
  5411. if(is_array($arrLP))
  5412. {
  5413. foreach($arrLP as $key=>$value){
  5414. if($value['id']==$id){
  5415. $id_prerequisite=$value['prerequisite'];
  5416. break;
  5417. }
  5418. }
  5419. }
  5420. $select_prerequisites=$form->addElement('select', 'prerequisites', get_lang('Prerequisites').'&nbsp;:', '', 'id="prerequisites" class="learnpath_item_form"');
  5421. $select_prerequisites->addOption(get_lang("NoPrerequisites"),0);
  5422. // form element for uploading an mp3 file
  5423. $form->addElement('file','mp3',get_lang('UploadMp3audio'),'id="mp3" size="33"');
  5424. $form->addRule('file', 'The extension of the Song file should be *.mp3', 'filename', '/^.*\.mp3$/');
  5425. /* Code deprecated - moved to lp level (not lp-item)
  5426. if ( api_get_setting('search_enabled') === 'true' )
  5427. {
  5428. //add terms field
  5429. $terms = $form->addElement('text','terms', get_lang('SearchFeatureTerms').'&nbsp;:','id="idTerms" class="learnpath_item_form"');
  5430. $terms->setValue($item_terms);
  5431. }
  5432. */
  5433. $arrHide=array();
  5434. for($i = 0; $i < count($arrLP); $i++)
  5435. {
  5436. if($arrLP[$i]['id'] != $id && $arrLP[$i]['item_type'] != 'dokeos_chapter')
  5437. {
  5438. if($extra_info['previous_item_id'] == $arrLP[$i]['id'])
  5439. $s_selected_position=$arrLP[$i]['id'];
  5440. elseif($action == 'add')
  5441. $s_selected_position=$arrLP[$i]['id'];
  5442. $arrHide[$arrLP[$i]['id']]['value']=mb_convert_encoding($arrLP[$i]['title'],$charset,$this->encoding);
  5443. }
  5444. }
  5445. foreach($arrHide as $key => $value){
  5446. $select_prerequisites->addOption($value['value'],$key,'style="padding-left:'.$value['padding'].'px;"');
  5447. if($key==$s_selected_position && $action == 'add'){
  5448. $select_prerequisites -> setSelected(0);
  5449. }
  5450. elseif($key==$id_prerequisite && $action == 'edit'){
  5451. $select_prerequisites -> setSelected($id_prerequisite);
  5452. }
  5453. }
  5454. if(!$no_display_add)
  5455. {
  5456. if(($extra_info == 'new' || $extra_info['item_type'] == TOOL_DOCUMENT || $_GET['edit'] == 'true'))
  5457. {
  5458. if(isset($_POST['content']))
  5459. $content = stripslashes($_POST['content']);
  5460. elseif(is_array($extra_info)){
  5461. //If it's an html document or a text file
  5462. if(!$no_display_edit_textarea){
  5463. $content = $this->display_document($extra_info['path'], false, false);
  5464. }
  5465. }
  5466. elseif(is_numeric($extra_info))
  5467. $content = $this->display_document($extra_info, false, false);
  5468. else
  5469. $content = '';
  5470. if(!$no_display_edit_textarea)
  5471. {
  5472. $form->addElement('submit', 'submit_button', get_lang('Ok'));
  5473. $renderer = $form->defaultRenderer();
  5474. $renderer->setElementTemplate('<br />&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;{label}<br />{element}','content_lp');
  5475. $form->addElement('html','<div style="margin:3px 12px">');
  5476. $form->addElement('html_editor','content_lp','');
  5477. $form->addElement('html','</div>');
  5478. $defaults["content_lp"]=$content;
  5479. }
  5480. }
  5481. elseif(is_numeric($extra_info))
  5482. {
  5483. $form->addElement('submit', 'submit_button', get_lang('Ok'));
  5484. $return = $this->display_document($extra_info, true, true, true);
  5485. $form->addElement('html',$return);
  5486. }
  5487. }
  5488. }
  5489. if($action == 'move')
  5490. {
  5491. $form->addElement('hidden', 'title', $item_title);
  5492. $form->addElement('hidden', 'description', $item_description);
  5493. }
  5494. if(is_numeric($extra_info))
  5495. {
  5496. $form->addElement('submit', 'submit_button', get_lang('Ok'));
  5497. $form->addElement('hidden', 'path', $extra_info);
  5498. }
  5499. elseif(is_array($extra_info))
  5500. {
  5501. $form->addElement('submit', 'submit_button', get_lang('Ok'));
  5502. $form->addElement('hidden', 'path', $extra_info['path']);
  5503. }
  5504. $form->addElement('hidden', 'type', TOOL_DOCUMENT);
  5505. $form->addElement('hidden', 'post_time', time());
  5506. $form->setDefaults($defaults);
  5507. return $form->return_form();
  5508. }
  5509. /**
  5510. * Return HTML form to add/edit a link item
  5511. *
  5512. * @param string Action (add/edit)
  5513. * @param integer Item ID if exists
  5514. * @param mixed Extra info
  5515. * @return string HTML form
  5516. */
  5517. function display_link_form($action = 'add', $id = 0, $extra_info = '')
  5518. {
  5519. global $charset;
  5520. $tbl_lp_item = Database::get_course_table('lp_item');
  5521. $tbl_link = Database::get_course_table(TABLE_LINK);
  5522. if($id != 0 && is_array($extra_info))
  5523. {
  5524. $item_title = stripslashes($extra_info['title']);
  5525. $item_description = stripslashes($extra_info['description']);
  5526. }
  5527. elseif(is_numeric($extra_info))
  5528. {
  5529. $sql_link = "
  5530. SELECT
  5531. title,
  5532. description,
  5533. url
  5534. FROM " . $tbl_link . "
  5535. WHERE id = " . $extra_info;
  5536. $result = api_sql_query($sql_link, __FILE__, __LINE__);
  5537. $row = Database::fetch_array($result);
  5538. $item_title = $row['title'];
  5539. $item_description = $row['description'];
  5540. $item_url = $row['url'];
  5541. }
  5542. else
  5543. {
  5544. $item_title = '';
  5545. $item_description = '';
  5546. }
  5547. $item_title=mb_convert_encoding($item_title,$charset,$this->encoding);
  5548. $item_description=mb_convert_encoding($item_description,$charset,$this->encoding);
  5549. $return = '<div class="sectiontitle">';
  5550. if($id != 0 && is_array($extra_info))
  5551. $parent = $extra_info['parent_item_id'];
  5552. else
  5553. $parent = 0;
  5554. $sql = "
  5555. SELECT *
  5556. FROM " . $tbl_lp_item . "
  5557. WHERE
  5558. lp_id = " . $this->lp_id;
  5559. $result = api_sql_query($sql, __FILE__, __LINE__);
  5560. $arrLP = array();
  5561. while($row = Database::fetch_array($result))
  5562. {
  5563. $arrLP[] = array(
  5564. 'id' => $row['id'],
  5565. 'item_type' => $row['item_type'],
  5566. 'title' => $row['title'],
  5567. 'path' => $row['path'],
  5568. 'description' => $row['description'],
  5569. 'parent_item_id' => $row['parent_item_id'],
  5570. 'previous_item_id' => $row['previous_item_id'],
  5571. 'next_item_id' => $row['next_item_id'],
  5572. 'display_order' => $row['display_order'],
  5573. 'max_score' => $row['max_score'],
  5574. 'min_score' => $row['min_score'],
  5575. 'mastery_score' => $row['mastery_score'],
  5576. 'prerequisite' => $row['prerequisite']);
  5577. }
  5578. $this->tree_array($arrLP);
  5579. $arrLP = $this->arrMenu;
  5580. unset($this->arrMenu);
  5581. if($action == 'add')
  5582. $return .= get_lang("CreateTheLink").'&nbsp;:' . "\n";
  5583. elseif($action == 'move')
  5584. $return .= get_lang("MoveCurrentLink").'&nbsp;:' . "\n";
  5585. else
  5586. $return .= get_lang("EditCurrentLink").'&nbsp;:' . "\n";
  5587. $return .= '</div>';
  5588. $return .= '<div class="sectioncomment">';
  5589. $return .= '<form method="POST">' . "\n";
  5590. $return .= "\t" . '<table>' . "\n";
  5591. if($action != 'move')
  5592. {
  5593. $return .= "\t\t" . '<tr>' . "\n";
  5594. $return .= "\t\t\t" . '<td class="label"><label for="idTitle">'.get_lang("Title").' :</label></td>' . "\n";
  5595. $return .= "\t\t\t" . '<td class="input"><input id="idTitle" name="title" type="text" value="' . $item_title . '" class="learnpath_item_form"/></td>' . "\n";
  5596. $return .= "\t\t" . '</tr>' . "\n";
  5597. }
  5598. $return .= "\t\t" . '<tr>' . "\n";
  5599. $return .= "\t\t\t" . '<td class="label"><label for="idParent">'.get_lang("Parent").' :</label></td>' . "\n";
  5600. $return .= "\t\t\t" . '<td class="input">' . "\n";
  5601. $return .= "\t\t\t\t" . '<select id="idParent" name="parent" onchange="load_cbo(this.value);" class="learnpath_item_form" size="1">';
  5602. $return .= "\t\t\t\t\t" . '<option class="top" value="0">' . $this->name . '</option>';
  5603. $arrHide = array($id);
  5604. for($i = 0; $i < count($arrLP); $i++)
  5605. {
  5606. if($action != 'add')
  5607. {
  5608. if(($arrLP[$i]['item_type'] == 'dokeos_module' || $arrLP[$i]['item_type'] == 'dokeos_chapter' || $arrLP[$i]['item_type'] == 'dir') && !in_array($arrLP[$i]['id'], $arrHide) && !in_array($arrLP[$i]['parent_item_id'], $arrHide))
  5609. {
  5610. $return .= "\t\t\t\t\t" . '<option ' . (($parent == $arrLP[$i]['id']) ? 'selected="selected" ' : '') . 'style="padding-left:' . ($arrLP[$i]['depth'] * 10) . 'px;" value="' . $arrLP[$i]['id'] . '">' . mb_convert_encoding($arrLP[$i]['title'],$charset,$this->encoding) . '</option>';
  5611. }
  5612. else
  5613. {
  5614. $arrHide[] = $arrLP[$i]['id'];
  5615. }
  5616. }
  5617. else
  5618. {
  5619. if($arrLP[$i]['item_type'] == 'dokeos_module' || $arrLP[$i]['item_type'] == 'dokeos_chapter' || $arrLP[$i]['item_type'] == 'dir')
  5620. $return .= "\t\t\t\t\t" . '<option ' . (($parent == $arrLP[$i]['id']) ? 'selected="selected" ' : '') . 'style="padding-left:' . ($arrLP[$i]['depth'] * 10) . 'px;" value="' . $arrLP[$i]['id'] . '">' . mb_convert_encoding($arrLP[$i]['title'],$charset,$this->encoding) . '</option>';
  5621. }
  5622. }
  5623. reset($arrLP);
  5624. $return .= "\t\t\t\t" . '</select>';
  5625. $return .= "\t\t\t" . '</td>' . "\n";
  5626. $return .= "\t\t" . '</tr>' . "\n";
  5627. $return .= "\t\t" . '<tr>' . "\n";
  5628. $return .= "\t\t\t" . '<td class="label"><label for="idPosition">'.get_lang("Position").' :</label></td>' . "\n";
  5629. $return .= "\t\t\t" . '<td class="input">' . "\n";
  5630. $return .= "\t\t\t\t" . '<select id="idPosition" name="previous" size="1" class="learnpath_item_form">';
  5631. $return .= "\t\t\t\t\t" . '<option class="top" value="0">'.get_lang("FirstPosition").'</option>';
  5632. for($i = 0; $i < count($arrLP); $i++)
  5633. {
  5634. if($arrLP[$i]['parent_item_id'] == $parent && $arrLP[$i]['id'] != $id)
  5635. {
  5636. if($extra_info['previous_item_id'] == $arrLP[$i]['id'])
  5637. $selected = 'selected="selected" ';
  5638. elseif($action == 'add')
  5639. $selected = 'selected="selected" ';
  5640. else
  5641. $selected = '';
  5642. $return .= "\t\t\t\t\t" . '<option ' . $selected . 'value="' . $arrLP[$i]['id'] . '">'.get_lang("After").' "' . mb_convert_encoding($arrLP[$i]['title'],$charset,$this->encoding) . '"</option>';
  5643. }
  5644. }
  5645. $return .= "\t\t\t\t" . '</select>';
  5646. $return .= "\t\t\t" . '</td>' . "\n";
  5647. $return .= "\t\t" . '</tr>' . "\n";
  5648. if($action != 'move')
  5649. {
  5650. $return .= "\t\t" . '<tr>' . "\n";
  5651. $return .= "\t\t\t" . '<td class="label"><label for="idDescription">'.get_lang("Description").' :</label></td>' . "\n";
  5652. $return .= "\t\t\t" . '<td class="input"><textarea id="idDescription" name="description" class="learnpath_item_form" rows="4">' . $item_description . '</textarea></td>' . "\n";
  5653. $return .= "\t\t" . '</tr>' . "\n";
  5654. $return .= "\t\t" . '<tr>' . "\n";
  5655. $return .= "\t\t\t" . '<td class="label"><label for="idURL">'.get_lang("Url").' :</label></td>' . "\n";
  5656. $return .= "\t\t\t" . '<td class="input"><input' . (is_numeric($extra_info) ? ' disabled="disabled"' : '') . ' id="idURL" name="url" type="text" value="' . $item_url . '" class="learnpath_item_form" /></td>' . "\n";
  5657. $return .= "\t\t" . '</tr>' . "\n";
  5658. $id_prerequisite=0;
  5659. foreach($arrLP as $key=>$value){
  5660. if($value['id']==$id){
  5661. $id_prerequisite=$value['prerequisite'];
  5662. break;
  5663. }
  5664. }
  5665. $arrHide=array();
  5666. for($i = 0; $i < count($arrLP); $i++)
  5667. {
  5668. if($arrLP[$i]['id'] != $id && $arrLP[$i]['item_type'] != 'dokeos_chapter')
  5669. {
  5670. if($extra_info['previous_item_id'] == $arrLP[$i]['id'])
  5671. $s_selected_position=$arrLP[$i]['id'];
  5672. elseif($action == 'add')
  5673. $s_selected_position=0;
  5674. $arrHide[$arrLP[$i]['id']]['value']=mb_convert_encoding($arrLP[$i]['title'],$charset,$this->encoding);
  5675. }
  5676. }
  5677. $return .= "\t\t" . '<tr>' . "\n";
  5678. $return .= "\t\t\t" . '<td class="label"><label for="idPrerequisites">'.get_lang("Prerequisites").' :</label></td>' . "\n";
  5679. $return .= "\t\t\t" . '<td class="input"><select name="prerequisites" id="prerequisites" class="learnpath_item_form"><option value="0">'.get_lang("NoPrerequisites").'</option>';
  5680. foreach($arrHide as $key => $value)
  5681. {
  5682. if($key==$s_selected_position && $action == 'add')
  5683. {
  5684. $return .= '<option value="'.$key.'" selected="selected">'.$value['value'].'</option>';
  5685. }
  5686. elseif($key==$id_prerequisite && $action == 'edit'){
  5687. $return .= '<option value="'.$key.'" selected="selected">'.$value['value'].'</option>';
  5688. }
  5689. else{
  5690. $return .= '<option value="'.$key.'">'.$value['value'].'</option>';
  5691. }
  5692. }
  5693. $return .= "</select></td>";
  5694. $return .= "\t\t" . '</tr>' . "\n";
  5695. }
  5696. $return .= "\t\t" . '<tr>' . "\n";
  5697. $return .= "\t\t\t" . '<td>&nbsp;</td><td><input class="button" name="submit_button" type="submit" value="'.get_lang("Ok").'" /></td>' . "\n";
  5698. $return .= "\t\t" . '</tr>' . "\n";
  5699. $return .= "\t" . '</table>' . "\n";
  5700. if($action == 'move')
  5701. {
  5702. $return .= "\t" . '<input name="title" type="hidden" value="' . $item_title . '" />' . "\n";
  5703. $return .= "\t" . '<input name="description" type="hidden" value="' . $item_description . '" />' . "\n";
  5704. }
  5705. if(is_numeric($extra_info))
  5706. {
  5707. $return .= "\t" . '<input name="path" type="hidden" value="' . $extra_info . '" />' . "\n";
  5708. }
  5709. elseif(is_array($extra_info))
  5710. {
  5711. $return .= "\t" . '<input name="path" type="hidden" value="' . $extra_info['path'] . '" />' . "\n";
  5712. }
  5713. $return .= "\t" . '<input name="type" type="hidden" value="'.TOOL_LINK.'" />' . "\n";
  5714. $return .= "\t" . '<input name="post_time" type="hidden" value="' . time() . '" />' . "\n";
  5715. $return .= '</form>' . "\n";
  5716. $return .= '</div>' . "\n";
  5717. return $return;
  5718. }
  5719. /**
  5720. * Return HTML form to add/edit a student publication (work)
  5721. *
  5722. * @param string Action (add/edit)
  5723. * @param integer Item ID if already exists
  5724. * @param mixed Extra info (work ID if integer)
  5725. * @return string HTML form
  5726. */
  5727. function display_student_publication_form($action = 'add', $id = 0, $extra_info = '')
  5728. {
  5729. global $charset;
  5730. $tbl_lp_item = Database::get_course_table('lp_item');
  5731. $tbl_publication = Database::get_course_table(TABLE_STUDENT_PUBLICATION);
  5732. if($id != 0 && is_array($extra_info))
  5733. {
  5734. $item_title = stripslashes($extra_info['title']);
  5735. $item_description = stripslashes($extra_info['description']);
  5736. }
  5737. elseif(is_numeric($extra_info))
  5738. {
  5739. $sql_publication = "
  5740. SELECT
  5741. title,
  5742. description
  5743. FROM " . $tbl_publication . "
  5744. WHERE id = " . $extra_info;
  5745. $result = api_sql_query($sql_publication, __FILE__, __LINE__);
  5746. $row = Database::fetch_array($result);
  5747. $item_title = $row['title'];
  5748. }
  5749. else
  5750. {
  5751. $item_title = '';
  5752. }
  5753. $item_title=mb_convert_encoding($item_title,$charset,$this->encoding);
  5754. $return = '<div class="sectiontitle">';
  5755. if($id != 0 && is_array($extra_info))
  5756. $parent = $extra_info['parent_item_id'];
  5757. else
  5758. $parent = 0;
  5759. $sql = "
  5760. SELECT *
  5761. FROM " . $tbl_lp_item . "
  5762. WHERE
  5763. lp_id = " . $this->lp_id;
  5764. $result = api_sql_query($sql, __FILE__, __LINE__);
  5765. $arrLP = array();
  5766. while($row = Database::fetch_array($result))
  5767. {
  5768. $arrLP[] = array(
  5769. 'id' => $row['id'],
  5770. 'item_type' => $row['item_type'],
  5771. 'title' => $row['title'],
  5772. 'path' => $row['path'],
  5773. 'description' => $row['description'],
  5774. 'parent_item_id' => $row['parent_item_id'],
  5775. 'previous_item_id' => $row['previous_item_id'],
  5776. 'next_item_id' => $row['next_item_id'],
  5777. 'display_order' => $row['display_order'],
  5778. 'max_score' => $row['max_score'],
  5779. 'min_score' => $row['min_score'],
  5780. 'mastery_score' => $row['mastery_score'],
  5781. 'prerequisite' => $row['prerequisite']);
  5782. }
  5783. $this->tree_array($arrLP);
  5784. $arrLP = $this->arrMenu;
  5785. unset($this->arrMenu);
  5786. if($action == 'add')
  5787. $return .= get_lang("Student_publication").'&nbsp;:' . "\n";
  5788. elseif($action == 'move')
  5789. $return .= get_lang("MoveCurrentStudentPublication").'&nbsp;:' . "\n";
  5790. else
  5791. $return .= get_lang("EditCurrentStudentPublication").'&nbsp;:' . "\n";
  5792. $return .= '</div>';
  5793. $return .= '<div class="sectioncomment">';
  5794. $return .= '<form method="POST">' . "\n";
  5795. $return .= "\t" . '<table>' . "\n";
  5796. if($action != 'move')
  5797. {
  5798. $return .= "\t\t" . '<tr>' . "\n";
  5799. $return .= "\t\t\t" . '<td class="label"><label for="idTitle">'.get_lang("Title").' :</label></td>' . "\n";
  5800. $return .= "\t\t\t" . '<td class="input"><input id="idTitle" name="title" type="text" value="' . $item_title . '" class="learnpath_item_form" /></td>' . "\n";
  5801. $return .= "\t\t" . '</tr>' . "\n";
  5802. }
  5803. $return .= "\t\t" . '<tr>' . "\n";
  5804. $return .= "\t\t\t" . '<td class="label"><label for="idParent">'.get_lang("Parent").' :</label></td>' . "\n";
  5805. $return .= "\t\t\t" . '<td class="input">' . "\n";
  5806. $return .= "\t\t\t\t" . '<select id="idParent" name="parent" onchange="load_cbo(this.value);" class="learnpath_item_form" size="1">';
  5807. $return .= "\t\t\t\t\t" . '<option class="top" value="0">' . $this->name . '</option>';
  5808. $arrHide = array($id);
  5809. for($i = 0; $i < count($arrLP); $i++)
  5810. {
  5811. if($action != 'add')
  5812. {
  5813. if(($arrLP[$i]['item_type'] == 'dokeos_module' || $arrLP[$i]['item_type'] == 'dokeos_chapter' || $arrLP[$i]['item_type'] == 'dir') && !in_array($arrLP[$i]['id'], $arrHide) && !in_array($arrLP[$i]['parent_item_id'], $arrHide))
  5814. {
  5815. $return .= "\t\t\t\t\t" . '<option ' . (($parent == $arrLP[$i]['id']) ? 'selected="selected" ' : '') . 'style="padding-left:' . ($arrLP[$i]['depth'] * 10) . 'px;" value="' . $arrLP[$i]['id'] . '">' . mb_convert_encoding($arrLP[$i]['title'],$charset,$this->encoding) . '</option>';
  5816. }
  5817. else
  5818. {
  5819. $arrHide[] = $arrLP[$i]['id'];
  5820. }
  5821. }
  5822. else
  5823. {
  5824. if($arrLP[$i]['item_type'] == 'dokeos_module' || $arrLP[$i]['item_type'] == 'dokeos_chapter' || $arrLP[$i]['item_type'] == 'dir')
  5825. $return .= "\t\t\t\t\t" . '<option ' . (($parent == $arrLP[$i]['id']) ? 'selected="selected" ' : '') . 'style="padding-left:' . ($arrLP[$i]['depth'] * 10) . 'px;" value="' . $arrLP[$i]['id'] . '">' . mb_convert_encoding($arrLP[$i]['title'],$charset,$this->encoding). '</option>';
  5826. }
  5827. }
  5828. if(is_array($arrLP))
  5829. {
  5830. reset($arrLP);
  5831. }
  5832. $return .= "\t\t\t\t" . '</select>';
  5833. $return .= "\t\t\t" . '</td>' . "\n";
  5834. $return .= "\t\t" . '</tr>' . "\n";
  5835. $return .= "\t\t" . '<tr>' . "\n";
  5836. $return .= "\t\t\t" . '<td class="label"><label for="idPosition">'.get_lang("Position").' :</label></td>' . "\n";
  5837. $return .= "\t\t\t" . '<td class="input">' . "\n";
  5838. $return .= "\t\t\t\t" . '<select id="idPosition" name="previous" size="1" class="learnpath_item_form">';
  5839. $return .= "\t\t\t\t\t" . '<option class="top" value="0">'.get_lang("FirstPosition").'</option>';
  5840. for($i = 0; $i < count($arrLP); $i++)
  5841. {
  5842. if($arrLP[$i]['parent_item_id'] == $parent && $arrLP[$i]['id'] != $id)
  5843. {
  5844. if($extra_info['previous_item_id'] == $arrLP[$i]['id'])
  5845. $selected = 'selected="selected" ';
  5846. elseif($action == 'add')
  5847. $selected = 'selected="selected" ';
  5848. else
  5849. $selected = '';
  5850. $return .= "\t\t\t\t\t" . '<option ' . $selected . 'value="' . $arrLP[$i]['id'] . '">'.get_lang("After").' "' . mb_convert_encoding($arrLP[$i]['title'],$charset,$this->encoding) . '"</option>';
  5851. }
  5852. }
  5853. $return .= "\t\t\t\t" . '</select>';
  5854. $return .= "\t\t\t" . '</td>' . "\n";
  5855. $return .= "\t\t" . '</tr>' . "\n";
  5856. if($action != 'move')
  5857. {
  5858. $id_prerequisite=0;
  5859. if(is_array($arrLP))
  5860. {
  5861. foreach($arrLP as $key=>$value){
  5862. if($value['id']==$id){
  5863. $id_prerequisite=$value['prerequisite'];
  5864. break;
  5865. }
  5866. }
  5867. }
  5868. $arrHide=array();
  5869. for($i = 0; $i < count($arrLP); $i++)
  5870. {
  5871. if($arrLP[$i]['id'] != $id && $arrLP[$i]['item_type'] != 'dokeos_chapter')
  5872. {
  5873. if($extra_info['previous_item_id'] == $arrLP[$i]['id'])
  5874. $s_selected_position=$arrLP[$i]['id'];
  5875. elseif($action == 'add')
  5876. $s_selected_position=0;
  5877. $arrHide[$arrLP[$i]['id']]['value']=mb_convert_encoding($arrLP[$i]['title'],$charset,$this->encoding);
  5878. }
  5879. }
  5880. $return .= "\t\t" . '<tr>' . "\n";
  5881. $return .= "\t\t\t" . '<td class="label"><label for="idPrerequisites">'.get_lang("Prerequisites").' :</label></td>' . "\n";
  5882. $return .= "\t\t\t" . '<td class="input"><select name="prerequisites" id="prerequisites" class="learnpath_item_form"><option value="0">'.get_lang("NoPrerequisites").'</option>';
  5883. foreach($arrHide as $key => $value){
  5884. if($key==$s_selected_position && $action == 'add'){
  5885. $return .= '<option value="'.$key.'" selected="selected">'.$value['value'].'</option>';
  5886. }
  5887. elseif($key==$id_prerequisite && $action == 'edit'){
  5888. $return .= '<option value="'.$key.'" selected="selected">'.$value['value'].'</option>';
  5889. }
  5890. else{
  5891. $return .= '<option value="'.$key.'">'.$value['value'].'</option>';
  5892. }
  5893. }
  5894. $return .= "</select></td>";
  5895. $return .= "\t\t" . '</tr>' . "\n";
  5896. }
  5897. $return .= "\t\t" . '<tr>' . "\n";
  5898. $return .= "\t\t\t" . '<td>&nbsp</td><td colspan="2"><input class="button" name="submit_button" type="submit" value="'.get_lang("Ok").'" /></td>' . "\n";
  5899. $return .= "\t\t" . '</tr>' . "\n";
  5900. $return .= "\t" . '</table>' . "\n";
  5901. if($action == 'move')
  5902. {
  5903. $return .= "\t" . '<input name="title" type="hidden" value="' . $item_title . '" />' . "\n";
  5904. $return .= "\t" . '<input name="description" type="hidden" value="' . $item_description . '" />' . "\n";
  5905. }
  5906. if(is_numeric($extra_info))
  5907. {
  5908. $return .= "\t" . '<input name="path" type="hidden" value="' . $extra_info . '" />' . "\n";
  5909. }
  5910. elseif(is_array($extra_info))
  5911. {
  5912. $return .= "\t" . '<input name="path" type="hidden" value="' . $extra_info['path'] . '" />' . "\n";
  5913. }
  5914. $return .= "\t" . '<input name="type" type="hidden" value="'.TOOL_STUDENTPUBLICATION.'" />' . "\n";
  5915. $return .= "\t" . '<input name="post_time" type="hidden" value="' . time() . '" />' . "\n";
  5916. $return .= '</form>' . "\n";
  5917. $return .= '</div>' . "\n";
  5918. return $return;
  5919. }
  5920. /**
  5921. * Displays the menu for manipulating a step
  5922. *
  5923. * @return unknown
  5924. */
  5925. function display_manipulate($item_id, $item_type = TOOL_DOCUMENT)
  5926. {
  5927. global $charset, $_course;
  5928. $return = '<div class="actions">';
  5929. switch($item_type)
  5930. {
  5931. case 'dokeos_chapter':
  5932. case 'chapter':
  5933. $lang = get_lang('TitleManipulateChapter');
  5934. break;
  5935. case 'dokeos_module':
  5936. case 'module':
  5937. $lang = get_lang('TitleManipulateModule');
  5938. break;
  5939. case TOOL_DOCUMENT:
  5940. $lang = get_lang('TitleManipulateDocument');
  5941. break;
  5942. case TOOL_LINK:
  5943. case 'link':
  5944. $lang = get_lang('TitleManipulateLink');
  5945. break;
  5946. case TOOL_QUIZ:
  5947. $lang = get_lang('TitleManipulateQuiz');
  5948. break;
  5949. case TOOL_STUDENTPUBLICATION:
  5950. $lang = get_lang('TitleManipulateStudentPublication');
  5951. break;
  5952. }
  5953. $tbl_lp_item = Database::get_course_table('lp_item');
  5954. $sql = "
  5955. SELECT
  5956. *
  5957. FROM " . $tbl_lp_item . " as lp
  5958. WHERE
  5959. lp.id = " . $item_id;
  5960. $result = api_sql_query($sql, __FILE__, __LINE__);
  5961. $row= mysql_fetch_assoc($result);
  5962. $s_title = $row['title'];
  5963. $s_title=mb_convert_encoding($s_title,$charset,$this->encoding);
  5964. // we display an audio player if needed
  5965. if (!empty($row['audio']))
  5966. {
  5967. $return .= '<div class="lp_mediaplayer" id="container"><a href="http://www.macromedia.com/go/getflashplayer">Get the Flash Player</a> to see this player.</div>';
  5968. $return .= '<script type="text/javascript" src="../inc/lib/mediaplayer/swfobject.js"></script>';
  5969. $return .= '<script type="text/javascript">
  5970. var s1 = new SWFObject("../inc/lib/mediaplayer/player.swf","ply","250","20","9","#FFFFFF");
  5971. s1.addParam("allowscriptaccess","always");
  5972. s1.addParam("flashvars","file=../../courses/'.$_course['path'].'/document/audio/'.$row['audio'].'&image=preview.jpg&autostart=true");
  5973. s1.write("container");
  5974. </script>';
  5975. }
  5976. $return .= $lang.': ';
  5977. $return .= '<a href="' .api_get_self(). '?cidReq=' . $_GET['cidReq'] . '&amp;action=edit_item&amp;view=build&amp;id=' . $item_id . '&amp;lp_id=' . $this->lp_id . '" title="'.get_lang("Edit").'"><img align="absbottom" alt="Edit the current item" src="../img/edit.gif" title="'.get_lang("Edit").'" /> '.get_lang("Edit").'</a>';
  5978. $return .= '<a href="' .api_get_self(). '?cidReq=' . $_GET['cidReq'] . '&amp;action=move_item&amp;view=build&amp;id=' . $item_id . '&amp;lp_id=' . $this->lp_id . '" title="Move the current item"><img align="absbottom" alt="Move the current item" src="../img/deplacer_fichier.gif" title="'.get_lang("Move").'" /> '.get_lang("Move").'</a>';
  5979. // commented for now as prerequisites cannot be added to chapters
  5980. if($item_type != 'dokeos_chapter' && $item_type != 'chapter')
  5981. {
  5982. $return .= '<a href="' .api_get_self(). '?cidReq=' . $_GET['cidReq'] . '&amp;action=edit_item_prereq&amp;view=build&amp;id=' . $item_id . '&amp;lp_id=' . $this->lp_id . '" title="'.get_lang('Prerequisites').'"><img align="absbottom" alt="'.get_lang('Prerequisites').'" src="../img/right.gif" title="'.get_lang('Prerequisites').'" /> '.get_lang('Prerequisites').'</a>';
  5983. }
  5984. $return .= '<a href="' .api_get_self(). '?cidReq=' . $_GET['cidReq'] . '&amp;action=delete_item&amp;view=build&amp;id=' . $item_id . '&amp;lp_id=' . $this->lp_id . '" onclick="return confirmation(\'' .addslashes($s_title). '\');" title="Delete the current item"><img alt="Delete the current item" align="absbottom" src="../img/delete.gif" title="'.get_lang("Delete").'" /> '.get_lang("Delete").'</a>';
  5985. //$return .= '<br><br><p class="lp_text">' . ((trim($s_description) == '') ? ''.get_lang("NoDescription").'' : stripslashes(nl2br($s_description))) . '</p>';
  5986. //$return.="</td><td valign='top'>";
  5987. // get the audiorecorder. Use of ob_* functions since there are echos in the file
  5988. ob_start();
  5989. $audio_recorder_studentview = 'false';
  5990. $audio_recorder_item_id = $item_id;
  5991. if(api_get_setting('service_visio','active')=='true'){
  5992. include('audiorecorder.inc.php');
  5993. }
  5994. $return .= ob_get_contents();
  5995. ob_end_clean();
  5996. // end of audiorecorder include
  5997. $return .= '</div>';
  5998. return $return;
  5999. }
  6000. /**
  6001. * Creates the javascript needed for filling up the checkboxes without page reload
  6002. *
  6003. * @return string
  6004. */
  6005. function create_js()
  6006. {
  6007. $return = '<script language="javascript" type="text/javascript">' . "\n";
  6008. $return .= 'function load_cbo(id){' . "\n";
  6009. $return .= "var cbo = document.getElementById('idPosition');\n";
  6010. $return .= 'for(var i = cbo.length - 1; i > 0; i--)';
  6011. $return .= 'cbo.options[i] = null;'."\n";
  6012. $return .= 'var k=0;'."\n";
  6013. $return .= 'for(var i = 1; i <= child_name[id].length; i++){'."\n";
  6014. $return .= ' cbo.options[i] = new Option(child_name[id][i-1], child_value[id][i-1]);'."\n";
  6015. $return .= 'k=i;';
  6016. $return .= '}' . "\n\n";
  6017. $return .= 'if( typeof cbo != "undefined" ) {cbo.options[k].selected = true;}';
  6018. $return .='}';
  6019. $return .= 'var child_name = new Array();' . "\n";
  6020. $return .= 'var child_value = new Array();' . "\n\n";
  6021. $return .= 'child_name[0] = new Array();' . "\n";
  6022. $return .= 'child_value[0] = new Array();' . "\n\n";
  6023. $tbl_lp_item = Database::get_course_table('lp_item');
  6024. $sql_zero = "
  6025. SELECT *
  6026. FROM " . $tbl_lp_item . "
  6027. WHERE
  6028. lp_id = " . $this->lp_id . " AND
  6029. parent_item_id = 0
  6030. ORDER BY display_order ASC";
  6031. $res_zero = api_sql_query($sql_zero, __FILE__, __LINE__);
  6032. global $charset;
  6033. $i = 0;
  6034. while($row_zero = Database::fetch_array($res_zero))
  6035. {
  6036. $return .= 'child_name[0][' . $i . '] = "'.get_lang("After").' \"' . mb_convert_encoding($row_zero['title'],$charset,$this->encoding) . '\"";' . "\n";
  6037. $return .= 'child_value[0][' . $i++ . '] = "' . $row_zero['id'] . '";' . "\n";
  6038. }
  6039. $return .= "\n";
  6040. $sql = "
  6041. SELECT *
  6042. FROM " . $tbl_lp_item . "
  6043. WHERE
  6044. lp_id = " . $this->lp_id;
  6045. $res = api_sql_query($sql, __FILE__, __LINE__);
  6046. while($row = Database::fetch_array($res))
  6047. {
  6048. $sql_parent = "
  6049. SELECT *
  6050. FROM " . $tbl_lp_item . "
  6051. WHERE parent_item_id = " . $row['id'] . "
  6052. ORDER BY display_order ASC";
  6053. $res_parent = api_sql_query($sql_parent, __FILE__, __LINE__);
  6054. $i = 0;
  6055. $return .= 'child_name[' . $row['id'] . '] = new Array();' . "\n";
  6056. $return .= 'child_value[' . $row['id'] . '] = new Array();' . "\n\n";
  6057. while($row_parent = Database::fetch_array($res_parent))
  6058. {
  6059. $return .= 'child_name[' . $row['id'] . '][' . $i . '] = "'.get_lang("After").' \"' . mb_convert_encoding($row_parent['title'],$charset,$this->encoding) . '\"";' . "\n";
  6060. $return .= 'child_value[' . $row['id'] . '][' . $i++ . '] = "' . $row_parent['id'] . '";' . "\n";
  6061. }
  6062. $return .= "\n";
  6063. }
  6064. $return .= '</script>' . "\n";
  6065. return $return;
  6066. }
  6067. /**
  6068. * Display the form to allow moving an item
  6069. *
  6070. * @param integer Item ID
  6071. * @return string HTML form
  6072. */
  6073. function display_move_item($item_id)
  6074. {
  6075. global $_course; //will disappear
  6076. global $charset;
  6077. $return = '';
  6078. if(is_numeric($item_id))
  6079. {
  6080. $tbl_lp_item = Database::get_course_table('lp_item');
  6081. $sql = "
  6082. SELECT *
  6083. FROM " . $tbl_lp_item . "
  6084. WHERE id = " . $item_id;
  6085. $res = api_sql_query($sql, __FILE__, __LINE__);
  6086. $row = Database::fetch_array($res);
  6087. switch($row['item_type'])
  6088. {
  6089. case 'dokeos_chapter': case 'dir' : case 'asset' :
  6090. $return .= $this->display_manipulate($item_id, $row['item_type']);
  6091. $return .= $this->display_item_form($row['item_type'], get_lang('MoveCurrentChapter'), 'move', $item_id, $row);
  6092. break;
  6093. case 'dokeos_module':
  6094. $return .= $this->display_manipulate($item_id, $row['item_type']);
  6095. $return .= $this->display_item_form($row['item_type'], 'Move th current module:', 'move', $item_id, $row);
  6096. break;
  6097. case TOOL_DOCUMENT:
  6098. $return .= $this->display_manipulate($item_id, $row['item_type']);
  6099. $return .= $this->display_document_form('move', $item_id, $row);
  6100. break;
  6101. case TOOL_LINK:
  6102. $return .= $this->display_manipulate($item_id, $row['item_type']);
  6103. $return .= $this->display_link_form('move', $item_id, $row);
  6104. break;
  6105. case TOOL_HOTPOTATOES:
  6106. $return .= $this->display_manipulate($item_id, $row['item_type']);
  6107. $return .= $this->display_link_form('move', $item_id, $row);
  6108. break;
  6109. case TOOL_QUIZ:
  6110. $return .= $this->display_manipulate($item_id, $row['item_type']);
  6111. $return .= $this->display_quiz_form('move', $item_id, $row);
  6112. break;
  6113. case TOOL_STUDENTPUBLICATION:
  6114. $return .= $this->display_manipulate($item_id, $row['item_type']);
  6115. $return .= $this->display_student_publication_form('move', $item_id, $row);
  6116. break;
  6117. case TOOL_FORUM :
  6118. $return .= $this->display_manipulate($item_id, $row['item_type']);
  6119. $return .= $this->display_forum_form('move', $item_id, $row);
  6120. }
  6121. }
  6122. return $return;
  6123. }
  6124. /**
  6125. * Displays a basic form on the overview page for changing the item title and the item description.
  6126. *
  6127. * @param string $item_type
  6128. * @param string $title
  6129. * @param array $data
  6130. * @return string
  6131. */
  6132. function display_item_small_form($item_type, $title = '', $data)
  6133. {
  6134. $return .= '<div class="lp_small_form">' . "\n";
  6135. $return .= '<p class="lp_title">' . $title . '</p>';
  6136. $return .= '<form method="post">' . "\n";
  6137. $return .= '<table cellpadding="0" cellspacing="0" class="lp_form">';
  6138. $return .= "\t\t" . '<tr>' . "\n";
  6139. $return .= "\t\t\t" . '<td class="label"><label for="idTitle">Title&nbsp;:</label></td>' . "\n";
  6140. $return .= "\t\t\t" . '<td class="input"><input class="small_form" id="idTitle" name="title" type="text" value="' . $data['title'] . '" /></td>' . "\n";
  6141. $return .= "\t\t" . '</tr>' . "\n";
  6142. $return .= "\t\t" . '<tr>' . "\n";
  6143. $return .= "\t\t\t" . '<td class="label"><label for="idDescription">Description&nbsp;:</label></td>' . "\n";
  6144. $return .= "\t\t\t" . '<td class="input"><textarea class="small_form" id="idDescription" name="description" rows="4">' . $data['description'] . '</textarea></td>' . "\n";
  6145. $return .= "\t\t" . '</tr>' . "\n";
  6146. $return .= "\t\t" . '<tr>' . "\n";
  6147. $return .= "\t\t\t" . '<td colspan="2"><input class="button small_form" name="submit_button" type="submit" value="'.get_lang('Ok').'" /></td>' . "\n";
  6148. $return .= "\t\t" . '</tr>' . "\n";
  6149. $return .= "\t\t" . '</table>' . "\n";
  6150. $return .= "\t" . '<input name="parent" type="hidden" value="' . $data['parent_item_id'] . '"/>' . "\n";
  6151. $return .= "\t" . '<input name="previous" type="hidden" value="' . $data['previous_item_id'] . '"/>' . "\n";
  6152. $return .= '</form>';
  6153. $return .= '</div>';
  6154. return $return;
  6155. }
  6156. /**
  6157. * Return HTML form to allow prerequisites selection
  6158. *
  6159. * @param integer Item ID
  6160. * @return string HTML form
  6161. */
  6162. function display_item_prerequisites_form($item_id)
  6163. {
  6164. global $charset;
  6165. $tbl_lp_item = Database::get_course_table('lp_item');
  6166. /* current prerequisite */
  6167. $sql = "
  6168. SELECT *
  6169. FROM " . $tbl_lp_item . "
  6170. WHERE id = " . $item_id;
  6171. $result = api_sql_query($sql, __FILE__, __LINE__);
  6172. $row = Database::fetch_array($result);
  6173. $preq_id = $row['prerequisite'];
  6174. //$preq_mastery = $row['mastery_score'];
  6175. //$preq_max = $row['max_score'];
  6176. $return = $this->display_manipulate($item_id, TOOL_DOCUMENT);
  6177. $return .= '<div class="sectiontitle">';
  6178. $return .= get_lang('AddEditPrerequisites');
  6179. $return .= '</div>';
  6180. $return .= '<div class="sectioncomment">';
  6181. $return .= '<form method="POST">';
  6182. $return .= '<table class="lp_prerequisites">';
  6183. $return .= '<tr>';
  6184. $return .= '<th></th>';
  6185. $return .= '<th >'.get_lang('Minimum').'</th>';
  6186. $return .= '<th>'.get_lang('Maximum').'</th>';
  6187. $return .= '</tr>';
  6188. $return .= '<tr>';
  6189. $return .= '<td class="radio">';
  6190. $return .= '<input checked="checked" id="idNone" name="prerequisites" style="margin-left:0; margin-right:10px;" type="radio" />';
  6191. $return .= '<label for="idNone">'.get_lang('None').'</label>';
  6192. $return .= '</td><td colspan="2" />';
  6193. $return .= '</tr>';
  6194. $sql = "
  6195. SELECT *
  6196. FROM " . $tbl_lp_item . "
  6197. WHERE
  6198. lp_id = " . $this->lp_id;
  6199. $result = api_sql_query($sql, __FILE__, __LINE__);
  6200. $arrLP = array();
  6201. while($row = Database::fetch_array($result))
  6202. {
  6203. $arrLP[] = array(
  6204. 'id' => $row['id'],
  6205. 'item_type' => $row['item_type'],
  6206. 'title' => mb_convert_encoding($row['title'],$charset,$this->encoding),
  6207. 'ref' => $row['ref'],
  6208. 'description' => $row['description'],
  6209. 'parent_item_id' => $row['parent_item_id'],
  6210. 'previous_item_id' => $row['previous_item_id'],
  6211. 'next_item_id' => $row['next_item_id'],
  6212. 'max_score' => $row['max_score'],
  6213. 'min_score' => $row['min_score'],
  6214. 'mastery_score' => $row['mastery_score'],
  6215. 'prerequisite' => $row['prerequisite'],
  6216. 'next_item_id' => $row['next_item_id'],
  6217. 'display_order' => $row['display_order']);
  6218. if($row['ref'] == $preq_id)
  6219. {
  6220. $preq_mastery = $row['mastery_score'];
  6221. $preq_max = $row['max_score'];
  6222. }
  6223. }
  6224. $this->tree_array($arrLP);
  6225. $arrLP = $this->arrMenu;
  6226. unset($this->arrMenu);
  6227. for($i = 0; $i < count($arrLP); $i++)
  6228. {
  6229. if($arrLP[$i]['id'] == $item_id)
  6230. break;
  6231. $return .= '<tr>';
  6232. $return .= '<td class="radio"' . (($arrLP[$i]['item_type'] != TOOL_QUIZ && $arrLP[$i]['item_type'] != TOOL_HOTPOTATOES) ? ' colspan="3"' : '') . '>';
  6233. $return .= '<input' . (($arrLP[$i]['id'] == $preq_id) ? ' checked="checked" ' : '') . (($arrLP[$i]['item_type'] == 'dokeos_module' || $arrLP[$i]['item_type'] == 'dokeos_chapter') ? ' disabled="disabled" ' : ' ') . 'id="id' . $arrLP[$i]['id'] . '" name="prerequisites" style="margin-left:' . $arrLP[$i]['depth'] * 10 . 'px; margin-right:10px;" type="radio" value="' . $arrLP[$i]['id'] . '" />';
  6234. $return .= '<img alt="" src="../img/lp_' . $arrLP[$i]['item_type'] . '.png" style="margin-right:5px;" title="" />';
  6235. $return .= '<label for="id' . $arrLP[$i]['id'] . '">' . $arrLP[$i]['title'] . '</label>';
  6236. $return .= '</td>';
  6237. //$return .= '<td class="radio"' . (($arrLP[$i]['item_type'] != TOOL_HOTPOTATOES) ? ' colspan="3"' : '') . ' />';
  6238. if($arrLP[$i]['item_type'] == TOOL_QUIZ)
  6239. {
  6240. $return .= '<td class="exercise">';
  6241. $return .= '<input maxlength="3" name="min_' . $arrLP[$i]['id'] . '" type="text" value="' . (($arrLP[$i]['id'] == $preq_id) ? $preq_mastery : 0) . '" />';
  6242. $return .= '</td>';
  6243. $return .= '<td class="exercise">';
  6244. $return .= '<input maxlength="3" name="max_' . $arrLP[$i]['id'] . '" type="text" value="' . $arrLP[$i]['max_score'] . '" disabled="true" />';
  6245. $return .= '</td>';
  6246. }
  6247. if($arrLP[$i]['item_type'] == TOOL_HOTPOTATOES)
  6248. {
  6249. $return .= '<td class="exercise">';
  6250. $return .= '<input maxlength="3" name="min_' . $arrLP[$i]['id'] . '" type="text" value="' . (($arrLP[$i]['id'] == $preq_id) ? $preq_mastery : 0) . '" />';
  6251. $return .= '</td>';
  6252. $return .= '<td class="exercise">';
  6253. $return .= '<input maxlength="3" name="max_' . $arrLP[$i]['id'] . '" type="text" value="' . $arrLP[$i]['max_score'] . '" disabled="true" />';
  6254. $return .= '</td>';
  6255. }
  6256. $return .='</tr>';
  6257. }
  6258. $return .= '<tr>';
  6259. $return .= '<td colspan="3">';
  6260. $return .= '<input class="button" name="submit_button" type="submit" value="'.get_lang("Ok").'" /></td>' . "\n";
  6261. $return .= '</td>';
  6262. $return .= '</tr>';
  6263. $return .= '</table>';
  6264. $return .= '</form>';
  6265. $return .= '</div>';
  6266. return $return;
  6267. }
  6268. /**
  6269. * Creates a list with all the documents in it
  6270. *
  6271. * @return string
  6272. */
  6273. function get_documents()
  6274. {
  6275. global $_course;
  6276. $tbl_doc = Database::get_course_table(TABLE_DOCUMENT);
  6277. $sql_doc = "
  6278. SELECT *
  6279. FROM " . $tbl_doc . "
  6280. WHERE
  6281. path NOT LIKE '%_DELETED_%'
  6282. ORDER BY path ASC";
  6283. $res_doc = api_sql_query($sql_doc, __FILE__, __LINE__);
  6284. $return = '<div class="lp_resource_header"' . " onclick=\"if(document.getElementById('resDoc').style.display == 'block') {document.getElementById('resDoc').style.display = 'none';} else {document.getElementById('resDoc').style.display = 'block';}\"" . '><img alt="" src="../img/lp_' . TOOL_DOCUMENT . '.gif" style="margin-right:5px;" title="" />'.get_lang("Documents").'</div>';
  6285. $return .= '<div class="lp_resource_elements" id="resDoc">';
  6286. $resources=api_store_result($res_doc);
  6287. $resources_sorted = array();
  6288. // if you want to debug it, I advise you to do "echo" on the eval statements
  6289. foreach($resources as $resource)
  6290. {
  6291. $resource_paths = explode('/',$resource['path']);
  6292. array_shift($resource_paths);
  6293. $path_to_eval = $last_path = '';
  6294. $is_file = false;
  6295. foreach($resource_paths as $key => $resource_path)
  6296. {
  6297. if(strpos($resource_path,'.')===false && $key != count($resource_paths)-1)
  6298. { // it's a folder
  6299. $path_to_eval .= '["'.$resource_path.'"]["files"]';
  6300. }
  6301. else if(strpos($resource_path,'.')!==false)
  6302. $is_file = true;
  6303. $last_path = $resource_path;
  6304. }
  6305. if($is_file)
  6306. {
  6307. eval('$resources_sorted'.$path_to_eval.'['.$resource['id'].'] = "'.$last_path.'";');
  6308. }
  6309. else
  6310. {
  6311. eval('$resources_sorted'.$path_to_eval.'["'.$last_path.'"]["id"]='.$resource['id'].';');
  6312. }
  6313. }
  6314. $return .=$this->write_resources_tree($resources_sorted);
  6315. $return .='</div>';
  6316. if(Database::num_rows($res_doc) == 0)
  6317. $return .= '<div class="lp_resource_element">'.get_lang("NoDocuments").'</div>';
  6318. return $return;
  6319. }
  6320. /**
  6321. * Generate and return an HTML list of resources based on a given array.
  6322. *
  6323. * This list is used to show the course creator a list of available resources to choose from
  6324. * when creating a learning path.
  6325. * @param array Array of elements to add to the list
  6326. * @param integer Enables the tree display by shifting the new elements a certain distance to the right
  6327. * @return string The HTML list
  6328. */
  6329. function write_resources_tree($resources_sorted, $num=0){
  6330. include_once(api_get_path(LIBRARY_PATH).'fileDisplay.lib.php');
  6331. if(count($resources_sorted)>0)
  6332. {
  6333. foreach($resources_sorted as $key=>$resource)
  6334. {
  6335. if(is_int($resource['id']))
  6336. { // it's a folder
  6337. $return .= '<div><div style="margin-left:' . ($num * 15) . 'px;margin-right:5px;"><img style="cursor: pointer;" src="../img/nolines_plus.gif" align="absmiddle" id="img_'.$resource["id"].'" onclick="testResources(\''.$resource["id"].'\',\'img_'.$resource["id"].'\')"><img alt="" src="../img/lp_folder.gif" title="" align="absmiddle" />&nbsp;<span onclick="testResources(\''.$resource["id"].'\',\'img_'.$resource["id"].'\')" style="cursor: pointer;" >'.$key.'</span></div><div style="display: none;" id="'.$resource['id'].'">';
  6338. $return .= $this->write_resources_tree($resource['files'], $num+1);
  6339. $return .= "</div></div>\r\n";
  6340. }
  6341. else
  6342. {
  6343. // it's a file
  6344. $icon = choose_image($resource);
  6345. $position = strrpos($icon,'.');
  6346. $icon=substr($icon,0,$position).'_small.gif';
  6347. $return .= '<div><div style="margin-left:' . (($num+1) * 15) . 'px;margin-right:5px;"><a href="' . api_get_self() . '?cidReq=' . $_GET['cidReq'] . '&amp;action=add_item&amp;type=' . TOOL_DOCUMENT . '&amp;file=' . $key . '&amp;lp_id=' . $this->lp_id . '"><img alt="" src="../img/'.$icon.'" title="" />&nbsp;'.$resource."</a></div></div>\r\n";
  6348. }
  6349. }
  6350. }
  6351. return $return;
  6352. }
  6353. /**
  6354. * Creates a list with all the exercises (quiz) in it
  6355. *
  6356. * @return string
  6357. */
  6358. function get_exercises()
  6359. {
  6360. // new for hotpotatoes
  6361. $uploadPath = DIR_HOTPOTATOES; //defined in main_api
  6362. $tbl_doc = Database::get_course_table(TABLE_DOCUMENT);
  6363. $tbl_quiz = Database::get_course_table(TABLE_QUIZ_TEST);
  6364. $sql_quiz = "
  6365. SELECT *
  6366. FROM " . $tbl_quiz . "
  6367. WHERE active<>'-1'
  6368. ORDER BY title ASC";
  6369. $sql_hot = "SELECT * FROM ".$tbl_doc." " .
  6370. " WHERE path LIKE '".$uploadPath."/%/%htm%'" .
  6371. " ORDER BY id ASC";
  6372. $res_quiz = api_sql_query($sql_quiz, __FILE__, __LINE__);
  6373. $res_hot = api_sql_query($sql_hot, __FILE__, __LINE__);
  6374. $return .= '<div class="lp_resource_header"' . " onclick=\"if(document.getElementById('resExercise').style.display == 'block') {document.getElementById('resExercise').style.display = 'none';} else {document.getElementById('resExercise').style.display = 'block';}\"" . ' ><img align="left" alt="" src="../img/lp_' . TOOL_QUIZ . '.gif" style="margin-right:5px;" title="" />'.get_lang('Quiz').'</div>';
  6375. $return .= '<div class="lp_resource_elements" id="resExercise">';
  6376. while ($row_hot = Database::fetch_array($res_hot))
  6377. {
  6378. $return .= '<div class="lp_resource_element">';
  6379. //display quizhotpotatoes
  6380. $return .= '<img alt="" src="../img/jqz.jpg" style="margin-right:5px;" title="" />';
  6381. $return .= '<a href="' .api_get_self(). '?cidReq=' . $_GET['cidReq'] . '&amp;action=add_item&amp;type=' . TOOL_HOTPOTATOES . '&amp;file=' . $row_hot['id'] . '&amp;lp_id=' . $this->lp_id . '">' . $row_hot['title'] . '</a>';
  6382. //$return .= $row_quiz['title'];
  6383. $return .= '</div>';
  6384. }
  6385. while($row_quiz = Database::fetch_array($res_quiz))
  6386. {
  6387. $return .= '<div class="lp_resource_element">';
  6388. $return .= '<img alt="" src="../img/quizz_small.gif" style="margin-right:5px;" title="" />';
  6389. $return .= '<a href="' .api_get_self(). '?cidReq=' . $_GET['cidReq'] . '&amp;action=add_item&amp;type=' . TOOL_QUIZ . '&amp;file=' . $row_quiz['id'] . '&amp;lp_id=' . $this->lp_id . '">' . $row_quiz['title'] . '</a>';
  6390. //$return .= $row_quiz['title'];
  6391. $return .= '</div>';
  6392. }
  6393. if(Database::num_rows($res_quiz) == 0)
  6394. $return .= '<div class="lp_resource_element">'.get_lang("NoExercisesAvailable").'</div>';
  6395. $return .= '<div class="lp_resource_element">';
  6396. $return .= '<img alt="" src="../img/new_test_small.gif" style="margin-right:5px;" title="" />';
  6397. $return .= '<a href="'.api_get_path(REL_CODE_PATH).'exercice/exercise_admin.php">' . get_lang('NewExercise') . '</a>';
  6398. $return .= '</div>';
  6399. $return .= '</div>';
  6400. return $return;
  6401. }
  6402. /**
  6403. * Creates a list with all the links in it
  6404. *
  6405. * @return string
  6406. */
  6407. function get_links()
  6408. {
  6409. $tbl_link = Database::get_course_table(TABLE_LINK);
  6410. $sql_link = "
  6411. SELECT *
  6412. FROM " . $tbl_link . "
  6413. ORDER BY title ASC";
  6414. $res_link = api_sql_query($sql_link, __FILE__, __LINE__);
  6415. $return .= '<div class="lp_resource_header"' . " onclick=\"if(document.getElementById('resLink').style.display == 'block') {document.getElementById('resLink').style.display = 'none';} else {document.getElementById('resLink').style.display = 'block';}\"" . '><img alt="" src="../img/lp_' . TOOL_LINK . '.gif" style="margin-right:5px;" title="" />'.get_lang("Links").'</div>';
  6416. $return .= '<div class="lp_resource_elements" id="resLink">';
  6417. while($row_link = Database::fetch_array($res_link))
  6418. {
  6419. $return .= '<div class="lp_resource_element">';
  6420. $return .= '<img alt="" src="../img/file_html_small.gif" style="margin-right:5px;" title="" />';
  6421. $return .= '<a href="' .api_get_self(). '?cidReq=' . $_GET['cidReq'] . '&amp;action=add_item&amp;type=' . TOOL_LINK . '&amp;file=' . $row_link['id'] . '&amp;lp_id=' . $this->lp_id . '">' . $row_link['title'] . '</a>';
  6422. $return .= '</div>';
  6423. }
  6424. $return .= '<div class="lp_resource_element">';
  6425. $return .= '<img alt="" src="../img/file_html_new_small.gif" style="margin-right:5px;" title="" />';
  6426. $return .= '<a href="'.api_get_path(REL_CODE_PATH).'link/link.php?'.api_get_cidreq().'&action=addlink" title="' . get_lang('LinkAdd') . '">' . get_lang('LinkAdd') . '</a>';
  6427. $return .= '</div>';
  6428. if(Database::num_rows($res_link) == 0)
  6429. $return .= '<div class="lp_resource_element">'.get_lang("NoLinksAvailable").'</div>';
  6430. $return .= '</div>';
  6431. return $return;
  6432. }
  6433. /**
  6434. * Creates a list with all the student publications in it
  6435. *
  6436. * @return unknown
  6437. */
  6438. function get_student_publications()
  6439. {
  6440. $tbl_student = Database::get_course_table(TABLE_STUDENT_PUBLICATION);
  6441. $sql_student = "
  6442. SELECT *
  6443. FROM " . $tbl_student . "
  6444. ORDER BY title ASC";
  6445. $res_student = api_sql_query($sql_student, __FILE__, __LINE__);
  6446. $return .= '<div class="lp_resource_header"' . " onclick=\"if(document.getElementById('resStudent').style.display == 'block') {document.getElementById('resStudent').style.display = 'none';} else {document.getElementById('resStudent').style.display = 'block';}\"" . '><img alt="" src="../img/lp_' . TOOL_STUDENTPUBLICATION . '.gif" style="margin-right:5px;" title="" />'.get_lang('Student_publication').'</div>';
  6447. $return .= '<div class="lp_resource_elements" id="resStudent">';
  6448. $return .= '<div class="lp_resource_element">';
  6449. $return .= '<img align="left" alt="" src="../img/works_small.gif" style="margin-right:5px;" title="" />';
  6450. $return .= '<a href="' .api_get_self(). '?cidReq=' . $_GET['cidReq'] . '&amp;action=add_item&amp;type=' . TOOL_STUDENTPUBLICATION . '&amp;lp_id=' . $this->lp_id . '">' . get_lang('AddAssignmentPage') . '</a>';
  6451. $return .= '</div>';
  6452. $return .= '</div>';
  6453. return $return;
  6454. }
  6455. /**
  6456. * Creates a list with all the forums in it
  6457. *
  6458. * @return string
  6459. */
  6460. function get_forums()
  6461. {
  6462. include ('../forum/forumfunction.inc.php');
  6463. include ('../forum/forumconfig.inc.php');
  6464. global $table_forums, $table_threads,$table_posts, $table_item_property, $table_users;
  6465. $table_forums = Database :: get_course_table(TABLE_FORUM);
  6466. $table_threads = Database :: get_course_table(TABLE_FORUM_THREAD);
  6467. $table_posts = Database :: get_course_table(TABLE_FORUM_POST);
  6468. $table_item_property = Database :: get_course_table(TABLE_ITEM_PROPERTY);
  6469. $table_users = Database :: get_main_table(TABLE_MAIN_USER);
  6470. $a_forums = get_forums();
  6471. $return .= '<div class="lp_resource_header"' . " onclick=\"if(document.getElementById('forums').style.display == 'block') {document.getElementById('forums').style.display = 'none';} else {document.getElementById('forums').style.display = 'block';}\"" . '><img alt="" src="../img/lp_forum.gif" style="margin-right:5px;" title="" />'.get_lang('Forums').'</div>';
  6472. $return .= '<div class="lp_resource_elements" id="forums">';
  6473. foreach($a_forums as $forum)
  6474. {
  6475. $return .= '<div class="lp_resource_element">';
  6476. $return .= '<script type="text/javascript">
  6477. function toggle_forum(forum_id){
  6478. if(document.getElementById("forum_"+forum_id+"_content").style.display == "none"){
  6479. document.getElementById("forum_"+forum_id+"_content").style.display = "block";
  6480. document.getElementById("forum_"+forum_id+"_opener").src = "'.api_get_path(WEB_IMG_PATH).'remove.gif";
  6481. }
  6482. else {
  6483. document.getElementById("forum_"+forum_id+"_content").style.display = "none";
  6484. document.getElementById("forum_"+forum_id+"_opener").src = "'.api_get_path(WEB_IMG_PATH).'add.gif";
  6485. }
  6486. }
  6487. </script>
  6488. ';
  6489. $return .= '<img alt="" src="../img/lp_forum.gif" style="margin-right:5px;" title="" />';
  6490. $return .= '<a style="cursor:hand" onclick="toggle_forum('.$forum['forum_id'].')" style="vertical-align:middle"><img src="'.api_get_path(WEB_IMG_PATH).'add.gif" id="forum_'.$forum['forum_id'].'_opener" align="absbottom" /></a>
  6491. <a href="' .api_get_self(). '?cidReq=' . $_GET['cidReq'] . '&amp;action=add_item&amp;type=' . TOOL_FORUM . '&amp;forum_id=' . $forum['forum_id'] . '&amp;lp_id=' . $this->lp_id . '" style="vertical-align:middle">' . $forum['forum_title'] . '</a><ul style="display:none" id="forum_'.$forum['forum_id'].'_content">';
  6492. $a_threads = get_threads($forum['forum_id']);
  6493. if(is_array($a_threads)){
  6494. foreach($a_threads as $thread)
  6495. {
  6496. $return .= '<li><a href="' .api_get_self(). '?cidReq=' . $_GET['cidReq'] . '&amp;action=add_item&amp;type=' . TOOL_THREAD . '&amp;thread_id=' . $thread['thread_id'] . '&amp;lp_id=' . $this->lp_id . '">' . $thread['thread_title'] . '</a></li>';
  6497. }
  6498. }
  6499. $return .= '</ul></div>';
  6500. }
  6501. $return .= '<div class="lp_resource_element">';
  6502. $return .= '<img alt="" src="../img/forum_new_small.gif" style="margin-right:5px;" title="" />';
  6503. $return .= '<a href="'.api_get_path(REL_CODE_PATH).'forum/index.php?'.api_get_cidreq().'&action=add&amp;content=forum" title="'.get_lang('CreateANewForum').'">'.get_lang('CreateANewForum').'</a>';
  6504. $return .= '</div>';
  6505. return $return;
  6506. }
  6507. /**
  6508. * Exports the learning path as a SCORM package. This is the main function that
  6509. * gathers the content, transforms it, writes the imsmanifest.xml file, zips the
  6510. * whole thing and returns the zip.
  6511. *
  6512. * This method needs to be called in PHP5, as it will fail with non-adequate
  6513. * XML package (like the ones for PHP4), and it is *not* a static method, so
  6514. * you need to call it on a learnpath object.
  6515. * @TODO The method might be redefined later on in the scorm class itself to avoid
  6516. * creating a SCORM structure if there is one already. However, if the initial SCORM
  6517. * path has been modified, it should use the generic method here below.
  6518. * @TODO link this function with the export_lp() function in the same class
  6519. * @param string Optional name of zip file. If none, title of learnpath is
  6520. * domesticated and trailed with ".zip"
  6521. * @return string Returns the zip package string, or null if error
  6522. */
  6523. function scorm_export()
  6524. {
  6525. global $_course;
  6526. if (!class_exists('DomDocument'))
  6527. {
  6528. error_log('DOM functions not supported for PHP version below 5.0',0);
  6529. $this->error = 'PHP DOM functions not supported for PHP versions below 5.0';
  6530. return null;
  6531. }
  6532. //remove memory and time limits as much as possible as this might be a long process...
  6533. if(function_exists('ini_set'))
  6534. {
  6535. $mem = ini_get('memory_limit');
  6536. if(substr($mem,-1,1)=='M')
  6537. {
  6538. $mem_num = substr($mem,0,-1);
  6539. if($mem_num<128)
  6540. {
  6541. ini_set('memory_limit','128M');
  6542. }
  6543. }
  6544. else
  6545. {
  6546. ini_set('memory_limit','128M');
  6547. }
  6548. ini_set('max_execution_time',600);
  6549. //}else{
  6550. //error_log('Scorm export: could not change memory and time limits',0);
  6551. }
  6552. //Create the zip handler (this will remain available throughout the method)
  6553. $garbage_path = api_get_path(GARBAGE_PATH);
  6554. $sys_course_path = api_get_path(SYS_COURSE_PATH);
  6555. $temp_dir_short = uniqid();
  6556. $temp_zip_dir = $garbage_path."/".$temp_dir_short;
  6557. $temp_zip_file = $temp_zip_dir."/".md5(time()).".zip";
  6558. $zip_folder=new PclZip($temp_zip_file);
  6559. $current_course_path = api_get_path(SYS_COURSE_PATH).api_get_course_path();
  6560. $root_path = $main_path = api_get_path(SYS_PATH);
  6561. $files_cleanup = array();
  6562. //place to temporarily stash the zipfiles
  6563. //create the temp dir if it doesn't exist
  6564. //or do a cleanup befor creating the zipfile
  6565. if(!is_dir($temp_zip_dir))
  6566. {
  6567. mkdir($temp_zip_dir);
  6568. }
  6569. else
  6570. {//cleanup: check the temp dir for old files and delete them
  6571. $handle=opendir($temp_zip_dir);
  6572. while (false!==($file = readdir($handle)))
  6573. {
  6574. if ($file != "." && $file != "..")
  6575. {
  6576. unlink("$temp_zip_dir/$file");
  6577. }
  6578. }
  6579. closedir($handle);
  6580. }
  6581. $zip_files = $zip_files_abs = $zip_files_dist = array();
  6582. if(is_dir($current_course_path.'/scorm/'.$this->path) && is_file($current_course_path.'/scorm/'.$this->path.'/imsmanifest.xml'))
  6583. {
  6584. // remove the possible . at the end of the path
  6585. $dest_path_to_lp = substr($this->path, -1) == '.' ? substr($this->path, 0, -1) : $this->path;
  6586. $dest_path_to_scorm_folder = str_replace('//','/',$temp_zip_dir.'/scorm/'.$dest_path_to_lp);
  6587. $perm = api_get_setting('permissions_for_new_directories');
  6588. $perm = octdec(!empty($perm)?$perm:'0770');
  6589. mkdir ($dest_path_to_scorm_folder, $perm, true);
  6590. $zip_files_dist = copyr($current_course_path.'/scorm/'.$this->path, $dest_path_to_scorm_folder, array('imsmanifest'), $zip_files);
  6591. }
  6592. //Build a dummy imsmanifest structure. Do not add to the zip yet (we still need it)
  6593. //This structure is developed following regulations for SCORM 1.2 packaging in the SCORM 1.2 Content
  6594. //Aggregation Model official document, secion "2.3 Content Packaging"
  6595. $xmldoc = new DOMDocument('1.0',$this->encoding);
  6596. $root = $xmldoc->createElement('manifest');
  6597. $root->setAttribute('identifier','SingleCourseManifest');
  6598. $root->setAttribute('version','1.1');
  6599. $root->setAttribute('xmlns','http://www.imsproject.org/xsd/imscp_rootv1p1p2');
  6600. $root->setAttribute('xmlns:adlcp','http://www.adlnet.org/xsd/adlcp_rootv1p2');
  6601. $root->setAttribute('xmlns:xsi','http://www.w3.org/2001/XMLSchema-instance');
  6602. $root->setAttribute('xsi:schemaLocation','http://www.imsproject.org/xsd/imscp_rootv1p1p2 imscp_rootv1p1p2.xsd
  6603. http://www.imsglobal.org/xsd/imsmd_rootv1p2p1 imsmd_rootv1p2p1.xsd
  6604. http://www.adlnet.org/xsd/adlcp_rootv1p2 adlcp_rootv1p2.xsd');
  6605. //Build mandatory sub-root container elements
  6606. $metadata = $xmldoc->createElement('metadata');
  6607. $md_schema = $xmldoc->createElement('schema','ADL SCORM');
  6608. $metadata->appendChild($md_schema);
  6609. $md_schemaversion = $xmldoc->createElement('schemaversion','1.2');
  6610. $metadata->appendChild($md_schemaversion);
  6611. $root->appendChild($metadata);
  6612. $organizations = $xmldoc->createElement('organizations');
  6613. $resources = $xmldoc->createElement('resources');
  6614. //Build the only organization we will use in building our learnpaths
  6615. $organizations->setAttribute('default','dokeos_scorm_export');
  6616. $organization = $xmldoc->createElement('organization');
  6617. $organization->setAttribute('identifier','dokeos_scorm_export');
  6618. //to set the title of the SCORM entity (=organization), we take the name given
  6619. //in Dokeos and convert it to HTML entities using the Dokeos charset (not the
  6620. //learning path charset) as it is the encoding that defines how it is stored
  6621. //in the database. Then we convert it to HTML entities again as the "&" character
  6622. //alone is not authorized in XML (must be &amp;)
  6623. //The title is then decoded twice when extracting (see scorm::parse_manifest)
  6624. global $charset;
  6625. $org_title = $xmldoc->createElement('title',htmlentities(htmlentities($this->get_name(),ENT_QUOTES,$charset)));
  6626. $organization->appendChild($org_title);
  6627. //For each element, add it to the imsmanifest structure, then add it to the zip.
  6628. //Always call the learnpathItem->scorm_export() method to change it to the SCORM
  6629. //format
  6630. $link_updates = array();
  6631. foreach($this->items as $index => $item){
  6632. if(!in_array($item->type , array(TOOL_QUIZ, TOOL_FORUM, TOOL_THREAD, TOOL_LINK, TOOL_STUDENTPUBLICATION)))
  6633. {
  6634. //get included documents from this item
  6635. if($item->type=='sco')
  6636. $inc_docs = $item->get_resources_from_source(null,api_get_path(SYS_COURSE_PATH).api_get_course_path().'/'.'scorm/'.$this->path.'/'.$item->get_path());
  6637. else
  6638. $inc_docs = $item->get_resources_from_source();
  6639. //give a child element <item> to the <organization> element
  6640. $my_item_id = $item->get_id();
  6641. $my_item = $xmldoc->createElement('item');
  6642. $my_item->setAttribute('identifier','ITEM_'.$my_item_id);
  6643. $my_item->setAttribute('identifierref','RESOURCE_'.$my_item_id);
  6644. $my_item->setAttribute('isvisible','true');
  6645. //give a child element <title> to the <item> element
  6646. $my_title = $xmldoc->createElement('title',htmlspecialchars($item->get_title(),ENT_QUOTES));
  6647. $my_item->appendChild($my_title);
  6648. //give a child element <adlcp:prerequisites> to the <item> element
  6649. $my_prereqs = $xmldoc->createElement('adlcp:prerequisites',$this->get_scorm_prereq_string($my_item_id));
  6650. $my_prereqs->setAttribute('type','aicc_script');
  6651. $my_item->appendChild($my_prereqs);
  6652. //give a child element <adlcp:maxtimeallowed> to the <item> element - not yet supported
  6653. //$xmldoc->createElement('adlcp:maxtimeallowed','');
  6654. //give a child element <adlcp:timelimitaction> to the <item> element - not yet supported
  6655. //$xmldoc->createElement('adlcp:timelimitaction','');
  6656. //give a child element <adlcp:datafromlms> to the <item> element - not yet supported
  6657. //$xmldoc->createElement('adlcp:datafromlms','');
  6658. //give a child element <adlcp:masteryscore> to the <item> element
  6659. $my_masteryscore = $xmldoc->createElement('adlcp:masteryscore',$item->masteryscore);
  6660. $my_item->appendChild($my_masteryscore);
  6661. //attach this item to the organization element or hits parent if there is one
  6662. if(!empty($item->parent) && $item->parent!=0)
  6663. {
  6664. $children = $organization->childNodes;
  6665. $possible_parent = &$this->get_scorm_xml_node($children,'ITEM_'.$item->parent);
  6666. if(is_object($possible_parent))
  6667. {
  6668. $possible_parent->appendChild($my_item);
  6669. }
  6670. else
  6671. {
  6672. if($this->debug>0){error_log('Parent ITEM_'.$item->parent.' of item ITEM_'.$my_item_id.' not found');}
  6673. }
  6674. }
  6675. else
  6676. {
  6677. if($this->debug>0){error_log('No parent');}
  6678. $organization->appendChild($my_item);
  6679. }
  6680. //get the path of the file(s) from the course directory root
  6681. $my_file_path = $item->get_file_path('scorm/'.$this->path.'/');
  6682. $my_xml_file_path = htmlentities($my_file_path);
  6683. $my_sub_dir = dirname($my_file_path);
  6684. $my_xml_sub_dir = htmlentities($my_sub_dir);
  6685. //give a <resource> child to the <resources> element
  6686. $my_resource = $xmldoc->createElement('resource');
  6687. $my_resource->setAttribute('identifier','RESOURCE_'.$item->get_id());
  6688. $my_resource->setAttribute('type','webcontent');
  6689. $my_resource->setAttribute('href',$my_xml_file_path);
  6690. //adlcp:scormtype can be either 'sco' or 'asset'
  6691. if($item->type=='sco')
  6692. {
  6693. $my_resource->setAttribute('adlcp:scormtype','sco');
  6694. }
  6695. else
  6696. {
  6697. $my_resource->setAttribute('adlcp:scormtype','asset');
  6698. }
  6699. //xml:base is the base directory to find the files declared in this resource
  6700. $my_resource->setAttribute('xml:base','');
  6701. //give a <file> child to the <resource> element
  6702. $my_file = $xmldoc->createElement('file');
  6703. $my_file->setAttribute('href',$my_xml_file_path);
  6704. $my_resource->appendChild($my_file);
  6705. //dependency to other files - not yet supported
  6706. $i = 1;
  6707. foreach($inc_docs as $doc_info)
  6708. {
  6709. if(count($doc_info)<1 or empty($doc_info[0])){continue;}
  6710. $my_dep = $xmldoc->createElement('resource');
  6711. $res_id = 'RESOURCE_'.$item->get_id().'_'.$i;
  6712. $my_dep->setAttribute('identifier',$res_id);
  6713. $my_dep->setAttribute('type','webcontent');
  6714. $my_dep->setAttribute('adlcp:scormtype','asset');
  6715. $my_dep_file = $xmldoc->createElement('file');
  6716. //check type of URL
  6717. //error_log(__LINE__.'Now dealing with '.$doc_info[0].' of type '.$doc_info[1].'-'.$doc_info[2],0);
  6718. if($doc_info[1] == 'remote')
  6719. { //remote file. Save url as is
  6720. $my_dep_file->setAttribute('href',$doc_info[0]);
  6721. $my_dep->setAttribute('xml:base','');
  6722. }elseif($doc_info[1] == 'local'){
  6723. switch($doc_info[2])
  6724. {
  6725. case 'url': //local URL - save path as url for now, don't zip file
  6726. $abs_path = api_get_path(SYS_PATH).str_replace(api_get_path(WEB_PATH),'',$doc_info[0]);
  6727. $current_dir = dirname($abs_path);
  6728. $file_path = realpath($abs_path);
  6729. $my_dep_file->setAttribute('href',$file_path);
  6730. $my_dep->setAttribute('xml:base','');
  6731. if(strstr($file_path,$main_path) !== false)
  6732. {//the calculated real path is really inside the dokeos root path
  6733. //reduce file path to what's under the DocumentRoot
  6734. $file_path = substr($file_path,strlen($root_path)-1);
  6735. //echo $file_path;echo '<br><br>';
  6736. //error_log(__LINE__.'Reduced url path: '.$file_path,0);
  6737. $zip_files_abs[] = $file_path;
  6738. $link_updates[$my_file_path][] = array('orig'=>$doc_info[0],'dest'=>$file_path);
  6739. $my_dep_file->setAttribute('href',$file_path);
  6740. $my_dep->setAttribute('xml:base','');
  6741. }
  6742. else if (empty($file_path))
  6743. {
  6744. /*$document_root = substr(api_get_path(SYS_PATH), 0, strpos(api_get_path(SYS_PATH),api_get_path(REL_PATH)));
  6745. if(strpos($document_root,-1)=='/')
  6746. {
  6747. $document_root = substr(0, -1, $document_root);
  6748. }*/
  6749. $file_path = $_SERVER['DOCUMENT_ROOT'].$abs_path;
  6750. $file_path = str_replace('//','/',$file_path);
  6751. if(file_exists($file_path))
  6752. {
  6753. $file_path = substr($file_path,strlen($current_dir)); // we get the relative path
  6754. $zip_files[] = $my_sub_dir.'/'.$file_path;
  6755. $link_updates[$my_file_path][] = array('orig'=>$doc_info[0],'dest'=>$file_path);
  6756. $my_dep_file->setAttribute('href',$file_path);
  6757. $my_dep->setAttribute('xml:base','');
  6758. }
  6759. }
  6760. break;
  6761. case 'abs': //absolute path from DocumentRoot. Save file and leave path as is in the zip
  6762. $my_dep_file->setAttribute('href',$doc_info[0]);
  6763. $my_dep->setAttribute('xml:base','');
  6764. //$current_dir = dirname($current_course_path.'/'.$item->get_file_path()).'/';
  6765. //the next lines fix a bug when using the "subdir" mode of Dokeos, whereas
  6766. //an image path would be constructed as /var/www/subdir/subdir/img/foo.bar
  6767. $abs_img_path_without_subdir = $doc_info[0];
  6768. $relp = api_get_path(REL_PATH); //the url-append config param
  6769. $pos = strpos($abs_img_path_without_subdir,$relp);
  6770. if($pos===0)
  6771. {
  6772. $abs_img_path_without_subdir = '/'.substr($abs_img_path_without_subdir,strlen($relp));
  6773. }
  6774. //$file_path = realpath(api_get_path(SYS_PATH).$doc_info[0]);
  6775. $file_path = realpath(api_get_path(SYS_PATH).$abs_img_path_without_subdir);
  6776. $file_path = str_replace('//','/',$file_path);
  6777. //error_log(__LINE__.'Abs path: '.$file_path,0);
  6778. //prepare the current directory path (until just under 'document') with a trailing slash
  6779. $cur_path = substr($current_course_path,-1)=='/'?$current_course_path:$current_course_path.'/';
  6780. //check if the current document is in that path
  6781. if(strstr($file_path,$cur_path) !== false)
  6782. {
  6783. //the document is in that path, now get the relative path
  6784. //to the containing document
  6785. $orig_file_path = dirname($cur_path.$my_file_path).'/';
  6786. $relative_path ='';
  6787. if(strstr($file_path,$cur_path)!==false)
  6788. {
  6789. $relative_path = substr($file_path,strlen($orig_file_path));
  6790. $file_path = substr($file_path,strlen($cur_path));
  6791. }
  6792. else
  6793. {
  6794. //this case is still a problem as it's difficult to calculate a relative path easily
  6795. //might still generate wrong links
  6796. //$file_path = substr($file_path,strlen($cur_path));
  6797. //calculate the directory path to the current file (without trailing slash)
  6798. $my_relative_path = dirname($file_path);
  6799. $my_relative_file = basename($file_path);
  6800. //calculate the directory path to the containing file (without trailing slash)
  6801. $my_orig_file_path = substr($orig_file_path,0,-1);
  6802. $dotdot = '';
  6803. $subdir = '';
  6804. while(strstr($my_relative_path,$my_orig_file_path)===false && (strlen($my_orig_file_path)>1) && (strlen($my_relative_path)>1))
  6805. {
  6806. $my_relative_path2 = dirname($my_relative_path);
  6807. $my_orig_file_path = dirname($my_orig_file_path);
  6808. $subdir = substr($my_relative_path,strlen($my_relative_path2)+1)."/".$subdir;
  6809. $dotdot += '../';
  6810. $my_relative_path = $my_relative_path2;
  6811. }
  6812. $relative_path = $dotdot.$subdir.$my_relative_file;
  6813. }
  6814. //put the current document in the zip (this array is the array
  6815. //that will manage documents already in the course folder - relative)
  6816. $zip_files[] = $file_path;
  6817. //update the links to the current document in the containing document (make them relative)
  6818. $link_updates[$my_file_path][] = array('orig'=>$doc_info[0],'dest'=>$relative_path);
  6819. $my_dep_file->setAttribute('href',$file_path);
  6820. $my_dep->setAttribute('xml:base','');
  6821. }
  6822. elseif(strstr($file_path,$main_path) !== false)
  6823. {//the calculated real path is really inside the dokeos root path
  6824. //reduce file path to what's under the DocumentRoot
  6825. $file_path = substr($file_path,strlen($root_path));
  6826. //echo $file_path;echo '<br><br>';
  6827. //error_log('Reduced path: '.$file_path,0);
  6828. $zip_files_abs[] = $file_path;
  6829. $link_updates[$my_file_path][] = array('orig'=>$doc_info[0],'dest'=>$file_path);
  6830. $my_dep_file->setAttribute('href','document/'.$file_path);
  6831. $my_dep->setAttribute('xml:base','');
  6832. }
  6833. else if (empty($file_path))
  6834. {
  6835. /*$document_root = substr(api_get_path(SYS_PATH), 0, strpos(api_get_path(SYS_PATH),api_get_path(REL_PATH)));
  6836. if(strpos($document_root,-1)=='/')
  6837. {
  6838. $document_root = substr(0, -1, $document_root);
  6839. }*/
  6840. $file_path = $_SERVER['DOCUMENT_ROOT'].$doc_info[0];
  6841. $file_path = str_replace('//','/',$file_path);
  6842. if(file_exists($file_path))
  6843. {
  6844. $file_path = substr($file_path,strlen($current_dir)); // we get the relative path
  6845. $zip_files[] = $my_sub_dir.'/'.$file_path;
  6846. $link_updates[$my_file_path][] = array('orig'=>$doc_info[0],'dest'=>$file_path);
  6847. $my_dep_file->setAttribute('href','document/'.$file_path);
  6848. $my_dep->setAttribute('xml:base','');
  6849. }
  6850. }
  6851. break;
  6852. case 'rel': //path relative to the current document. Save xml:base as current document's directory and save file in zip as subdir.file_path
  6853. if(substr($doc_info[0],0,2)=='..')
  6854. { //relative path going up
  6855. $current_dir = dirname($current_course_path.'/'.$item->get_file_path()).'/';
  6856. $file_path = realpath($current_dir.$doc_info[0]);
  6857. //error_log($file_path.' <-> '.$main_path,0);
  6858. if(strstr($file_path,$main_path) !== false)
  6859. {//the calculated real path is really inside the dokeos root path
  6860. //reduce file path to what's under the DocumentRoot
  6861. $file_path = substr($file_path,strlen($root_path));
  6862. //error_log('Reduced path: '.$file_path,0);
  6863. $zip_files_abs[] = $file_path;
  6864. $link_updates[$my_file_path][] = array('orig'=>$doc_info[0],'dest'=>$file_path);
  6865. $my_dep_file->setAttribute('href','document/'.$file_path);
  6866. $my_dep->setAttribute('xml:base','');
  6867. }
  6868. }else{
  6869. $zip_files[] = $my_sub_dir.'/'.$doc_info[0];
  6870. $my_dep_file->setAttribute('href',$doc_info[0]);
  6871. $my_dep->setAttribute('xml:base',$my_xml_sub_dir);
  6872. }
  6873. break;
  6874. default:
  6875. $my_dep_file->setAttribute('href',$doc_info[0]);
  6876. $my_dep->setAttribute('xml:base','');
  6877. break;
  6878. }
  6879. }
  6880. $my_dep->appendChild($my_dep_file);
  6881. $resources->appendChild($my_dep);
  6882. $dependency = $xmldoc->createElement('dependency');
  6883. $dependency->setAttribute('identifierref',$res_id);
  6884. $my_resource->appendChild($dependency);
  6885. $i++;
  6886. }
  6887. //$my_dependency = $xmldoc->createElement('dependency');
  6888. //$my_dependency->setAttribute('identifierref','');
  6889. $resources->appendChild($my_resource);
  6890. $zip_files[] = $my_file_path;
  6891. //error_log('File '.$my_file_path. ' added to $zip_files',0);
  6892. }
  6893. else
  6894. { // if the item is a quiz or a link or whatever non-exportable, we include a step indicating it
  6895. if($item->type == TOOL_LINK)
  6896. {
  6897. $my_item = $xmldoc->createElement('item');
  6898. $my_item->setAttribute('identifier','ITEM_'.$item->get_id());
  6899. $my_item->setAttribute('identifierref','RESOURCE_'.$item->get_id());
  6900. $my_item->setAttribute('isvisible','true');
  6901. //give a child element <title> to the <item> element
  6902. $my_title = $xmldoc->createElement('title',htmlspecialchars($item->get_title(),ENT_QUOTES));
  6903. $my_item->appendChild($my_title);
  6904. //give a child element <adlcp:prerequisites> to the <item> element
  6905. $my_prereqs = $xmldoc->createElement('adlcp:prerequisites',$item->get_prereq_string());
  6906. $my_prereqs->setAttribute('type','aicc_script');
  6907. $my_item->appendChild($my_prereqs);
  6908. //give a child element <adlcp:maxtimeallowed> to the <item> element - not yet supported
  6909. //$xmldoc->createElement('adlcp:maxtimeallowed','');
  6910. //give a child element <adlcp:timelimitaction> to the <item> element - not yet supported
  6911. //$xmldoc->createElement('adlcp:timelimitaction','');
  6912. //give a child element <adlcp:datafromlms> to the <item> element - not yet supported
  6913. //$xmldoc->createElement('adlcp:datafromlms','');
  6914. //give a child element <adlcp:masteryscore> to the <item> element
  6915. $my_masteryscore = $xmldoc->createElement('adlcp:masteryscore',$item->masteryscore);
  6916. $my_item->appendChild($my_masteryscore);
  6917. //attach this item to the organization element or its parent if there is one
  6918. if(!empty($item->parent) && $item->parent!=0)
  6919. {
  6920. $children = $organization->childNodes;
  6921. for($i=0;$i<$children->length;$i++){
  6922. $item_temp = $children->item($i);
  6923. if ($item_temp -> nodeName == 'item')
  6924. {
  6925. if($item_temp->getAttribute('identifier') == 'ITEM_'.$item->parent)
  6926. {
  6927. $item_temp -> appendChild($my_item);
  6928. }
  6929. }
  6930. }
  6931. }
  6932. else
  6933. {
  6934. $organization->appendChild($my_item);
  6935. }
  6936. $my_file_path = 'link_'.$item->get_id().'.html';
  6937. $sql = 'SELECT url, title FROM '.Database :: get_course_table(TABLE_LINK).' WHERE id='.$item->path;
  6938. $rs = api_sql_query($sql, __FILE__, __LINE__);
  6939. if($link = Database :: fetch_array($rs))
  6940. {
  6941. $url = $link['url'];
  6942. $title = stripslashes($link['title']);
  6943. $links_to_create[$my_file_path] = array('title'=>$title,'url'=>$url);
  6944. $my_xml_file_path = htmlentities($my_file_path);
  6945. $my_sub_dir = dirname($my_file_path);
  6946. $my_xml_sub_dir = htmlentities($my_sub_dir);
  6947. //give a <resource> child to the <resources> element
  6948. $my_resource = $xmldoc->createElement('resource');
  6949. $my_resource->setAttribute('identifier','RESOURCE_'.$item->get_id());
  6950. $my_resource->setAttribute('type','webcontent');
  6951. $my_resource->setAttribute('href',$my_xml_file_path);
  6952. //adlcp:scormtype can be either 'sco' or 'asset'
  6953. $my_resource->setAttribute('adlcp:scormtype','asset');
  6954. //xml:base is the base directory to find the files declared in this resource
  6955. $my_resource->setAttribute('xml:base','');
  6956. //give a <file> child to the <resource> element
  6957. $my_file = $xmldoc->createElement('file');
  6958. $my_file->setAttribute('href',$my_xml_file_path);
  6959. $my_resource->appendChild($my_file);
  6960. $resources->appendChild($my_resource);
  6961. }
  6962. }
  6963. elseif($item->type == TOOL_QUIZ)
  6964. {
  6965. require_once(api_get_path(SYS_CODE_PATH).'exercice/exercise.class.php');
  6966. $exe_id = $item->path; //should be using ref when everything will be cleaned up in this regard
  6967. $exe = new Exercise();
  6968. $exe->read($exe_id);
  6969. $my_item = $xmldoc->createElement('item');
  6970. $my_item->setAttribute('identifier','ITEM_'.$item->get_id());
  6971. $my_item->setAttribute('identifierref','RESOURCE_'.$item->get_id());
  6972. $my_item->setAttribute('isvisible','true');
  6973. //give a child element <title> to the <item> element
  6974. $my_title = $xmldoc->createElement('title',htmlspecialchars($item->get_title(),ENT_QUOTES));
  6975. $my_item->appendChild($my_title);
  6976. //give a child element <adlcp:prerequisites> to the <item> element
  6977. $my_prereqs = $xmldoc->createElement('adlcp:prerequisites',$item->get_prereq_string());
  6978. $my_prereqs->setAttribute('type','aicc_script');
  6979. $my_item->appendChild($my_prereqs);
  6980. //give a child element <adlcp:masteryscore> to the <item> element
  6981. $my_masteryscore = $xmldoc->createElement('adlcp:masteryscore',$item->masteryscore);
  6982. $my_item->appendChild($my_masteryscore);
  6983. //attach this item to the organization element or hits parent if there is one
  6984. if(!empty($item->parent) && $item->parent!=0)
  6985. {
  6986. $children = $organization->childNodes;
  6987. for($i=0;$i<$children->length;$i++){
  6988. $item_temp = $children->item($i);
  6989. if ($item_temp -> nodeName == 'item')
  6990. {
  6991. if($item_temp->getAttribute('identifier') == 'ITEM_'.$item->parent)
  6992. {
  6993. $item_temp -> appendChild($my_item);
  6994. }
  6995. }
  6996. }
  6997. }
  6998. else
  6999. {
  7000. $organization->appendChild($my_item);
  7001. }
  7002. //include export scripts
  7003. require_once(api_get_path(SYS_CODE_PATH).'exercice/export/scorm/scorm_export.php');
  7004. //get the path of the file(s) from the course directory root
  7005. //$my_file_path = $item->get_file_path('scorm/'.$this->path.'/');
  7006. $my_file_path = 'quiz_'.$item->get_id().'.html';
  7007. //write the contents of the exported exercise into a (big) html file
  7008. //to later pack it into the exported SCORM. The file will be removed afterwards
  7009. $contents = export_exercise($exe_id,true);
  7010. $tmp_file_path = $garbage_path.$temp_dir_short.'/'.$my_file_path;
  7011. $res = file_put_contents($tmp_file_path,$contents);
  7012. if($res === false){error_log('Could not write into file '.$tmp_file_path.' '.__FILE__.' '.__LINE__,0);}
  7013. $files_cleanup[] = $tmp_file_path;
  7014. //error_log($tmp_path);die();
  7015. $my_xml_file_path = htmlentities($my_file_path);
  7016. $my_sub_dir = dirname($my_file_path);
  7017. $my_xml_sub_dir = htmlentities($my_sub_dir);
  7018. //give a <resource> child to the <resources> element
  7019. $my_resource = $xmldoc->createElement('resource');
  7020. $my_resource->setAttribute('identifier','RESOURCE_'.$item->get_id());
  7021. $my_resource->setAttribute('type','webcontent');
  7022. $my_resource->setAttribute('href',$my_xml_file_path);
  7023. //adlcp:scormtype can be either 'sco' or 'asset'
  7024. $my_resource->setAttribute('adlcp:scormtype','sco');
  7025. //xml:base is the base directory to find the files declared in this resource
  7026. $my_resource->setAttribute('xml:base','');
  7027. //give a <file> child to the <resource> element
  7028. $my_file = $xmldoc->createElement('file');
  7029. $my_file->setAttribute('href',$my_xml_file_path);
  7030. $my_resource->appendChild($my_file);
  7031. //get included docs
  7032. $inc_docs = $item->get_resources_from_source(null,$tmp_file_path);
  7033. //dependency to other files - not yet supported
  7034. $i = 1;
  7035. foreach($inc_docs as $doc_info)
  7036. {
  7037. if(count($doc_info)<1 or empty($doc_info[0])){continue;}
  7038. $my_dep = $xmldoc->createElement('resource');
  7039. $res_id = 'RESOURCE_'.$item->get_id().'_'.$i;
  7040. $my_dep->setAttribute('identifier',$res_id);
  7041. $my_dep->setAttribute('type','webcontent');
  7042. $my_dep->setAttribute('adlcp:scormtype','asset');
  7043. $my_dep_file = $xmldoc->createElement('file');
  7044. //check type of URL
  7045. //error_log(__LINE__.'Now dealing with '.$doc_info[0].' of type '.$doc_info[1].'-'.$doc_info[2],0);
  7046. if($doc_info[1] == 'remote')
  7047. { //remote file. Save url as is
  7048. $my_dep_file->setAttribute('href',$doc_info[0]);
  7049. $my_dep->setAttribute('xml:base','');
  7050. }elseif($doc_info[1] == 'local'){
  7051. switch($doc_info[2])
  7052. {
  7053. case 'url': //local URL - save path as url for now, don't zip file
  7054. //save file but as local file (retrieve from URL)
  7055. $abs_path = api_get_path(SYS_PATH).str_replace(api_get_path(WEB_PATH),'',$doc_info[0]);
  7056. $current_dir = dirname($abs_path);
  7057. $file_path = realpath($abs_path);
  7058. $my_dep_file->setAttribute('href','document/'.$file_path);
  7059. $my_dep->setAttribute('xml:base','');
  7060. if(strstr($file_path,$main_path) !== false)
  7061. {//the calculated real path is really inside the dokeos root path
  7062. //reduce file path to what's under the DocumentRoot
  7063. $file_path = substr($file_path,strlen($root_path));
  7064. //echo $file_path;echo '<br><br>';
  7065. //error_log('Reduced path: '.$file_path,0);
  7066. $zip_files_abs[] = $file_path;
  7067. $link_updates[$my_file_path][] = array('orig'=>$doc_info[0],'dest'=>'document/'.$file_path);
  7068. $my_dep_file->setAttribute('href','document/'.$file_path);
  7069. $my_dep->setAttribute('xml:base','');
  7070. }
  7071. else if (empty($file_path))
  7072. {
  7073. /*$document_root = substr(api_get_path(SYS_PATH), 0, strpos(api_get_path(SYS_PATH),api_get_path(REL_PATH)));
  7074. if(strpos($document_root,-1)=='/')
  7075. {
  7076. $document_root = substr(0, -1, $document_root);
  7077. }*/
  7078. $file_path = $_SERVER['DOCUMENT_ROOT'].$abs_path;
  7079. $file_path = str_replace('//','/',$file_path);
  7080. if(file_exists($file_path))
  7081. {
  7082. $file_path = substr($file_path,strlen($current_dir)); // we get the relative path
  7083. $zip_files[] = $my_sub_dir.'/'.$file_path;
  7084. $link_updates[$my_file_path][] = array('orig'=>$doc_info[0],'dest'=>'document/'.$file_path);
  7085. $my_dep_file->setAttribute('href','document/'.$file_path);
  7086. $my_dep->setAttribute('xml:base','');
  7087. }
  7088. }
  7089. break;
  7090. case 'abs': //absolute path from DocumentRoot. Save file and leave path as is in the zip
  7091. $current_dir = dirname($current_course_path.'/'.$item->get_file_path()).'/';
  7092. $file_path = realpath($doc_info[0]);
  7093. $my_dep_file->setAttribute('href',$file_path);
  7094. $my_dep->setAttribute('xml:base','');
  7095. if(strstr($file_path,$main_path) !== false)
  7096. {//the calculated real path is really inside the dokeos root path
  7097. //reduce file path to what's under the DocumentRoot
  7098. $file_path = substr($file_path,strlen($root_path));
  7099. //echo $file_path;echo '<br><br>';
  7100. //error_log('Reduced path: '.$file_path,0);
  7101. $zip_files_abs[] = $file_path;
  7102. $link_updates[$my_file_path][] = array('orig'=>$doc_info[0],'dest'=>$file_path);
  7103. $my_dep_file->setAttribute('href','document/'.$file_path);
  7104. $my_dep->setAttribute('xml:base','');
  7105. }
  7106. else if (empty($file_path))
  7107. {
  7108. /*$document_root = substr(api_get_path(SYS_PATH), 0, strpos(api_get_path(SYS_PATH),api_get_path(REL_PATH)));
  7109. if(strpos($document_root,-1)=='/')
  7110. {
  7111. $document_root = substr(0, -1, $document_root);
  7112. }*/
  7113. $file_path = $_SERVER['DOCUMENT_ROOT'].$doc_info[0];
  7114. $file_path = str_replace('//','/',$file_path);
  7115. if(file_exists($file_path))
  7116. {
  7117. $file_path = substr($file_path,strlen($current_dir)); // we get the relative path
  7118. $zip_files[] = $my_sub_dir.'/'.$file_path;
  7119. $link_updates[$my_file_path][] = array('orig'=>$doc_info[0],'dest'=>$file_path);
  7120. $my_dep_file->setAttribute('href','document/'.$file_path);
  7121. $my_dep->setAttribute('xml:base','');
  7122. }
  7123. }
  7124. break;
  7125. case 'rel': //path relative to the current document. Save xml:base as current document's directory and save file in zip as subdir.file_path
  7126. if(substr($doc_info[0],0,2)=='..')
  7127. { //relative path going up
  7128. $current_dir = dirname($current_course_path.'/'.$item->get_file_path()).'/';
  7129. $file_path = realpath($current_dir.$doc_info[0]);
  7130. //error_log($file_path.' <-> '.$main_path,0);
  7131. if(strstr($file_path,$main_path) !== false)
  7132. {//the calculated real path is really inside the dokeos root path
  7133. //reduce file path to what's under the DocumentRoot
  7134. $file_path = substr($file_path,strlen($root_path));
  7135. //error_log('Reduced path: '.$file_path,0);
  7136. $zip_files_abs[] = $file_path;
  7137. $link_updates[$my_file_path][] = array('orig'=>$doc_info[0],'dest'=>$file_path);
  7138. $my_dep_file->setAttribute('href','document/'.$file_path);
  7139. $my_dep->setAttribute('xml:base','');
  7140. }
  7141. }else{
  7142. $zip_files[] = $my_sub_dir.'/'.$doc_info[0];
  7143. $my_dep_file->setAttribute('href',$doc_info[0]);
  7144. $my_dep->setAttribute('xml:base',$my_xml_sub_dir);
  7145. }
  7146. break;
  7147. default:
  7148. $my_dep_file->setAttribute('href',$doc_info[0]);
  7149. $my_dep->setAttribute('xml:base','');
  7150. break;
  7151. }
  7152. }
  7153. $my_dep->appendChild($my_dep_file);
  7154. $resources->appendChild($my_dep);
  7155. $dependency = $xmldoc->createElement('dependency');
  7156. $dependency->setAttribute('identifierref',$res_id);
  7157. $my_resource->appendChild($dependency);
  7158. $i++;
  7159. }
  7160. $resources->appendChild($my_resource);
  7161. $zip_files[] = $my_file_path;
  7162. }
  7163. else
  7164. {
  7165. //get the path of the file(s) from the course directory root
  7166. $my_file_path = 'non_exportable.html';
  7167. $my_xml_file_path = htmlentities($my_file_path);
  7168. $my_sub_dir = dirname($my_file_path);
  7169. $my_xml_sub_dir = htmlentities($my_sub_dir);
  7170. //give a <resource> child to the <resources> element
  7171. $my_resource = $xmldoc->createElement('resource');
  7172. $my_resource->setAttribute('identifier','RESOURCE_'.$item->get_id());
  7173. $my_resource->setAttribute('type','webcontent');
  7174. $my_resource->setAttribute('href','document/'.$my_xml_file_path);
  7175. //adlcp:scormtype can be either 'sco' or 'asset'
  7176. $my_resource->setAttribute('adlcp:scormtype','asset');
  7177. //xml:base is the base directory to find the files declared in this resource
  7178. $my_resource->setAttribute('xml:base','');
  7179. //give a <file> child to the <resource> element
  7180. $my_file = $xmldoc->createElement('file');
  7181. $my_file->setAttribute('href','document/'.$my_xml_file_path);
  7182. $my_resource->appendChild($my_file);
  7183. $resources->appendChild($my_resource);
  7184. }
  7185. }
  7186. }
  7187. $organizations->appendChild($organization);
  7188. $root->appendChild($organizations);
  7189. $root->appendChild($resources);
  7190. $xmldoc->appendChild($root);
  7191. //todo: add a readme file here, with a short description and a link to the Reload player
  7192. //then add the file to the zip, then destroy the file (this is done automatically)
  7193. // http://www.reload.ac.uk/scormplayer.html - once done, don't forget to close FS#138
  7194. //error_log(print_r($zip_files,true),0);
  7195. foreach($zip_files as $file_path)
  7196. {
  7197. if(empty($file_path)){continue;}
  7198. //error_log(__LINE__.'getting document from '.$sys_course_path.$_course['path'].'/'.$file_path.' removing '.$sys_course_path.$_course['path'].'/',0);
  7199. $dest_file = $garbage_path.$temp_dir_short.'/'.$file_path;
  7200. $this->create_path($dest_file);
  7201. //error_log('copy '.api_get_path('SYS_COURSE_PATH').$_course['path'].'/'.$file_path.' to '.api_get_path('GARBAGE_PATH').$temp_dir_short.'/'.$file_path,0);
  7202. //echo $main_path.$file_path.'<br>';
  7203. @copy($sys_course_path.$_course['path'].'/'.$file_path,$dest_file);
  7204. //check if the file needs a link update
  7205. if(in_array($file_path,array_keys($link_updates))){
  7206. $string = file_get_contents($dest_file);
  7207. unlink($dest_file);
  7208. foreach($link_updates[$file_path] as $old_new)
  7209. {
  7210. //error_log('Replacing '.$old_new['orig'].' by '.$old_new['dest'].' in '.$file_path,0);
  7211. //this is an ugly hack that allows .flv files to be found by the flv player that
  7212. // will be added in document/main/inc/lib/flv_player/flv_player.swf and that needs
  7213. // to find the flv to play in document/main/, so we replace main/ in the flv path by
  7214. // ../../.. to return from inc/lib/flv_player to the document/main path
  7215. if(substr($old_new['dest'],-3)=='flv' && substr($old_new['dest'],0,5)=='main/')
  7216. {
  7217. $old_new['dest'] = str_replace('main/','../../../',$old_new['dest']);
  7218. }
  7219. elseif(substr($old_new['dest'],-3)=='flv' && substr($old_new['dest'],0,6)=='video/')
  7220. {
  7221. $old_new['dest'] = str_replace('video/','../../../../video/',$old_new['dest']);
  7222. }
  7223. $string = str_replace($old_new['orig'],$old_new['dest'],$string);
  7224. }
  7225. file_put_contents($dest_file,$string);
  7226. }
  7227. }
  7228. foreach($zip_files_abs as $file_path)
  7229. {
  7230. if(empty($file_path)){continue;}
  7231. //error_log(__LINE__.'checking existence of '.$main_path.$file_path.'',0);
  7232. if(!is_file($main_path.$file_path) || !is_readable($main_path.$file_path)){continue;}
  7233. //error_log(__LINE__.'getting document from '.$main_path.$file_path.' removing '.api_get_path('SYS_COURSE_PATH').$_course['path'].'/',0);
  7234. $dest_file = $garbage_path.$temp_dir_short.'/document/'.$file_path;
  7235. $this->create_path($dest_file);
  7236. //error_log('Created path '.api_get_path('GARBAGE_PATH').$temp_dir_short.'/document/'.$file_path,0);
  7237. //error_log('copy '.api_get_path('SYS_COURSE_PATH').$_course['path'].'/'.$file_path.' to '.api_get_path('GARBAGE_PATH').$temp_dir_short.'/'.$file_path,0);
  7238. //echo $main_path.$file_path.' - '.$dest_file.'<br>';
  7239. copy($main_path.$file_path,$dest_file);
  7240. //check if the file needs a link update
  7241. if(in_array($file_path,array_keys($link_updates)))
  7242. {
  7243. $string = file_get_contents($dest_file);
  7244. unlink($dest_file);
  7245. foreach($link_updates[$file_path] as $old_new)
  7246. {
  7247. //error_log('Replacing '.$old_new['orig'].' by '.$old_new['dest'].' in '.$file_path,0);
  7248. //this is an ugly hack that allows .flv files to be found by the flv player that
  7249. // will be added in document/main/inc/lib/flv_player/flv_player.swf and that needs
  7250. // to find the flv to play in document/main/, so we replace main/ in the flv path by
  7251. // ../../.. to return from inc/lib/flv_player to the document/main path
  7252. if(substr($old_new['dest'],-3)=='flv' && substr($old_new['dest'],0,5)=='main/')
  7253. {
  7254. $old_new['dest'] = str_replace('main/','../../../',$old_new['dest']);
  7255. }
  7256. $string = str_replace($old_new['orig'],$old_new['dest'],$string);
  7257. }
  7258. file_put_contents($dest_file,$string);
  7259. }
  7260. }
  7261. if(is_array($links_to_create))
  7262. {
  7263. foreach($links_to_create as $file=>$link)
  7264. {
  7265. $file_content = '<html><body><div style="text-align:center"><a href="'.$link['url'].'">'.$link['title'].'</a></div></body></html>';
  7266. file_put_contents($garbage_path.$temp_dir_short.'/'.$file, $file_content);
  7267. }
  7268. }
  7269. // add non exportable message explanation
  7270. $lang_not_exportable = get_lang('ThisItemIsNotExportable');
  7271. $file_content =
  7272. <<<EOD
  7273. <html>
  7274. <head>
  7275. <style>
  7276. .error-message {
  7277. font-family: arial, verdana, helvetica, sans-serif;
  7278. border-width: 1px;
  7279. border-style: solid;
  7280. left: 50%;
  7281. margin: 10px auto;
  7282. min-height: 30px;
  7283. padding: 5px;
  7284. right: 50%;
  7285. width: 500px;
  7286. background-color: #FFD1D1;
  7287. border-color: #FF0000;
  7288. color: #000;
  7289. }
  7290. </style>
  7291. <body>
  7292. <div class="error-message">
  7293. $lang_not_exportable
  7294. </div>
  7295. </body>
  7296. </html>
  7297. EOD;
  7298. if(!is_dir($garbage_path.$temp_dir_short.'/document'))
  7299. {
  7300. @mkdir($garbage_path.$temp_dir_short.'/document');
  7301. }
  7302. file_put_contents($garbage_path.$temp_dir_short.'/document/non_exportable.html', $file_content);
  7303. //Add the extra files that go along with a SCORM package
  7304. $main_code_path = api_get_path(SYS_CODE_PATH).'newscorm/packaging/';
  7305. $extra_files = scandir($main_code_path);
  7306. foreach($extra_files as $extra_file)
  7307. {
  7308. if(strpos($extra_file,'.')===0) continue;
  7309. else
  7310. {
  7311. $dest_file = $garbage_path.$temp_dir_short.'/'.$extra_file;
  7312. $this->create_path($dest_file);
  7313. copy($main_code_path.$extra_file,$dest_file);
  7314. }
  7315. }
  7316. //Finalize the imsmanifest structure, add to the zip, then return the zip
  7317. $xmldoc->save($garbage_path.'/'.$temp_dir_short.'/imsmanifest.xml');
  7318. $zip_folder->add($garbage_path.'/'.$temp_dir_short, PCLZIP_OPT_REMOVE_PATH, $garbage_path.'/'.$temp_dir_short.'/');
  7319. //clean possible temporary files
  7320. foreach($files_cleanup as $file)
  7321. {
  7322. $res = unlink($file);
  7323. if($res === false){error_log('Could not delete temp file '.$file.' '.__FILE__.' '.__LINE__,0);}
  7324. }
  7325. //Send file to client
  7326. //$name = 'scorm_export_'.$this->lp_id.'.zip';
  7327. require_once(api_get_path(LIBRARY_PATH).'fileUpload.lib.php');
  7328. $name = preg_replace('([^a-zA-Z0-9_\.])','-',html_entity_decode($this->get_name(),ENT_QUOTES)).'.zip';
  7329. DocumentManager::file_send_for_download($temp_zip_file,true,$name);
  7330. }
  7331. /**
  7332. * Temp function to be moved in main_api or the best place around for this. Creates a file path
  7333. * if it doesn't exist
  7334. */
  7335. function create_path($path){
  7336. $path_bits = split('/',dirname($path));
  7337. $path_built = '/';
  7338. foreach($path_bits as $bit){
  7339. if(!empty($bit)){
  7340. $new_path = $path_built.$bit;
  7341. if(is_dir($new_path)){
  7342. $path_built = $new_path.'/';
  7343. }
  7344. else
  7345. {
  7346. mkdir($new_path);
  7347. $path_built = $new_path.'/';
  7348. }
  7349. }
  7350. }
  7351. }
  7352. /**
  7353. * Delete the image relative to this learning path. No parameter. Only works on instanciated object.
  7354. * @return boolean The results of the unlink function, or false if there was no image to start with
  7355. */
  7356. function delete_lp_image()
  7357. {
  7358. $img = $this->get_preview_image();
  7359. if ($img!='')
  7360. {
  7361. $del_file = api_get_path(SYS_COURSE_PATH).api_get_course_path().'/upload/learning_path/images/'.$img;
  7362. $this->set_preview_image('');
  7363. return @unlink($del_file);
  7364. }
  7365. else
  7366. {
  7367. return false;
  7368. }
  7369. }
  7370. /**
  7371. * Uploads an author image to the upload/learning_path/images directory
  7372. * @param array The image array, coming from the $_FILES superglobal
  7373. * @return boolean True on success, false on error
  7374. */
  7375. function upload_image($image_array)
  7376. {
  7377. $image_moved=false;
  7378. if(!empty($image_array['name']))
  7379. {
  7380. $upload_ok = process_uploaded_file($image_array);
  7381. $has_attachment=true;
  7382. }
  7383. else
  7384. {
  7385. $image_moved=true;
  7386. }
  7387. if($upload_ok)
  7388. {
  7389. if ($has_attachment)
  7390. {
  7391. $courseDir = api_get_course_path().'/upload/learning_path/images';
  7392. $sys_course_path = api_get_path(SYS_COURSE_PATH);
  7393. $updir = $sys_course_path.$courseDir;
  7394. // Try to add an extension to the file if it hasn't one
  7395. $new_file_name = add_ext_on_mime(stripslashes($image_array['name']), $image_array['type']);
  7396. if (!filter_extension($new_file_name))
  7397. {
  7398. //Display :: display_error_message(get_lang('UplUnableToSaveFileFilteredExtension'));
  7399. $image_moved=false;
  7400. }
  7401. else
  7402. {
  7403. $file_extension = explode('.', $image_array['name']);
  7404. $file_extension = strtolower($file_extension[sizeof($file_extension) - 1]);
  7405. $new_file_name = uniqid('').'.'.$file_extension;
  7406. $new_path=$updir.'/'.$new_file_name;
  7407. //$result= @move_uploaded_file($image_array['tmp_name'], $new_path);
  7408. // resize the image
  7409. include_once (api_get_path(LIBRARY_PATH).'image.lib.php');
  7410. $temp = new image($image_array['tmp_name']);
  7411. $picture_infos=getimagesize($image_array['tmp_name']); // $picture_infos[0]-> width
  7412. if ($picture_infos[0]>240)
  7413. $thumbwidth=240;
  7414. else
  7415. $thumbwidth=$picture_infos[0];
  7416. if ($picture_infos[1]>100)
  7417. $new_height=100;
  7418. else
  7419. $new_height = $picture_infos[1];
  7420. //$new_height = round(($thumbwidth/$picture_infos[0])*$picture_infos[1]);
  7421. $temp->resize($thumbwidth,$new_height,0);
  7422. $type=$picture_infos[2];
  7423. $result=false;
  7424. switch ($type)
  7425. {
  7426. case 2 :
  7427. $result=$temp->send_image('JPG',$new_path);
  7428. break;
  7429. case 3 :
  7430. $result=$temp->send_image('PNG',$new_path);
  7431. break;
  7432. case 1 :
  7433. $result=$temp->send_image('GIF',$new_path);
  7434. break;
  7435. }
  7436. // Storing the image filename
  7437. if ($result)
  7438. {
  7439. $image_moved=true;
  7440. $this->set_preview_image($new_file_name);
  7441. return true;
  7442. }
  7443. }
  7444. }
  7445. }
  7446. return false;
  7447. }
  7448. }
  7449. if (!function_exists('trim_value')) {
  7450. function trim_value(&$value) {
  7451. $value = trim($value);
  7452. }
  7453. }
  7454. ?>